November 18, 2005


Securities and Exchange Commission
Judiciary Plaza
450 Fifth Street, N.W.
Washington, DC 20549
Attention:  Kate Tillan, Assistant Chief Accountant

         Re:      Sierra Monitor Corporation
                  Form 10-KSB for the Fiscal Year Ended December 31, 2004
                  Forms 10-QSB for the Fiscal Quarters Ended
                  March 31, 2005 and June 30, 2005
                  File No. 0-07441

Dear Ms. Tillan:

     Sierra Monitor  Corporation  (the  "Company") is submitting  this letter in
response to the Securities and Exchange  Commission's (the "Commission")  letter
dated October 12, 2005 (the "Comment  Letter").  For your  convenience,  we have
repeated your comments 1 through 8 below and the headings and numbered responses
in this  response  letter  correspond  to the  headings  and  numbered  comments
contained in the Comment Letter. Please feel free to contact me at the number at
the end of this response  letter with any further  questions or comments you may
have.

Form 10-KSB for the Fiscal Year Ended December 31, 2004
- -------------------------------------------------------

Financial Statements, page F-1
- ------------------------------

Note 1 - Summary of the Company and Significant Accounting Policies, page F-6
- -----------------------------------------------------------------------------

Revenue Recognition, page F-8
- -----------------------------

     1. Please tell us and revise  future  filings to disclose how you recognize
revenue  from each  type of  product  and  service  you  provide  to  customers,
identifying  in each  instance  those  events  that  would  indicate  that  each
criterion outlined in SAB Topic 13.A has been met.

Response:
- ---------

In response  to the Staff's  comment,  we  supplementally  advise the Staff that
according to Topic 13: Revenue Recognition of Staff Accounting Bulleting ("SAB")
No. 104, "Revenue  Recognition," revenue generally is realized or realizable and
earned when all of the following criteria are met:



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 2


     A)   persuasive evidence of an arrangement exists,

     B)   delivery has occurred or services have been rendered,

     C)   the seller's price to the buyer is fixed or determinable, and

     D)   collectibility is reasonably assured.

     Some revenue arrangements contain multiple  revenue-generating  activities.
     The SEC staff  believes that the  determination  of the units of accounting
     within  an  arrangement  should  be made  prior to the  application  of the
     guidance  in this  SAB  Topic by  reference  to the  applicable  accounting
     literature (i.e. EITF 00-21).

We apply the provisions of Topic 13.A to our products as follows:

1.   Gas Detection and Environment  Control  Products are sold as  off-the-shelf
     products based on released product numbers with prices fixed at the time of
     order (criteria C). Orders delivered to the Company by phone,  fax, mail or
     email are considered valid purchase orders and once accepted by the Company
     are  deemed to be the  final  understanding  between  the  Company  and our
     customer  as to the  specific  nature  and  terms of the  agreed-upon  sale
     transaction  (criteria A).  Products are considered  delivered when (a) for
     FOB factory  orders they leave our shipping  dock,  or (b) for FOB customer
     dock upon confirmation of delivery  (criteria B). The  creditworthiness  of
     customers is generally  assessed prior to the Company accepting their first
     order.  Additionally,   international  customers  and  customers  who  have
     developed a history of payment problems are generally required to prepay or
     pay through a letter-of-credit (criteria D).

2.   Gas Detection and Environment  Control  Services consist of customer orders
     for field service.  Generally field service  requires a visit to a customer
     site for inspection of the installation,  assistance with start-up and user
     training.  These  services are  provided  under  purchase  orders which are
     provided  separate  from  product  orders.  Orders are accepted in the same
     forms as above with hourly  prices  fixed at the time of order  (criteria A
     and C). The  services  are  provided by a Company  employee  or  contractor
     visiting a site and  completing  work.  A job ticket or report is completed
     and invoicing/revenue  recognition occurs only when the service activity is
     completed  (criteria  B). Such  services  are provided to current and prior
     customers, and, as noted above, creditworthiness has generally already been
     assessed.  In cases where probability of receiving payment is low, a credit
     card number is collected for immediate processing (criteria D).

3.   FieldServer  Products are small boxes similar to computer network hubs. The
     Products  have  multiple  ports  for  connection  to  various   electronics
     controls. They are sold in the same manner as Gas Detection and Environment
     Control  Products  except that there is a high content of software  that is
     integral to the operation of the product.  Orders  delivered to the Company
     by phone,  fax, mail or email are  considered  valid purchase  orders.  The
     Company  determines  whether it can accept the purchase  order by comparing
     the  requirement of the order against the  capabilities  of the FieldServer
     software products.  Upon acceptance by the Company the orders are deemed to
     be the final  understanding  between the Company and our customer as to the
     specific nature and terms  (including  fixed price) of the agreed-upon sale



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 3


     transaction  (criteria A and C). Products are considered delivered when (a)
     for FOB  factory  orders  they  leave  our  shipping  dock,  or (b) for FOB
     customer   dock  upon   confirmation   of   delivery   (criteria   B).  The
     creditworthiness  of customers is generally  assessed  prior to the Company
     accepting  their first order.  Additionally,  international  customers  and
     customers  who have  developed a history of payment  problems are generally
     required  to prepay or pay  through a  letter-of-credit  (criteria  D). The
     software to be provided with the order  includes two items:  (a) a compiled
     program containing (i) the basic operating system for FieldServers which is
     common to every unit and (ii) the correct set of protocol  drivers based on
     the customer order (see FieldServer  Services below for more  information);
     and (b) a configuration  file, like an Excel  spreadsheet,  that identifies
     and links each data point as identified by the customer.

     The  configuration  file is a separate line item on the order and, although
     it is an  electronic  file,  it should not be  considered  software;  it is
     simply  engineering  work product.  The Company does not deem the hardware,
     operating  system  with  protocol  drivers  and  configuration  files to be
     separate  units  of  accounting,   as  defined  in  EITF  00-21,   "Revenue
     Arrangements  with Multiple  Deliverables,"  because we do not believe that
     they have value on a stand-alone basis. The hardware is useless without the
     software,  and the  software  is only  intended  to be used in  FieldServer
     hardware. Additionally, the software included in each sale is deemed to not
     require significant production, modification or customization, as described
     in Statement of Position (SOP) 97-02,  "Software Revenue  Recognition",  as
     amended,  and therefore we recognize revenues upon the shipment or delivery
     of products (depending on shipping terms), as described above.

4.   FieldServer  Services consist of orders for custom  development of protocol
     drivers.  Orders are  received in the same manner as above,  but due to the
     non-recurring  engineering (the "NRE") aspect of the driver  development we
     are more likely to have a written  evidence trail of a quotation and a hard
     copy order  (criteria  A and C). The driver  development  involves  further
     research  after  receipt of order,  preparation  of a scope  document to be
     approved  by the  customer  and then  engineering  time to write,  test and
     release the driver program.  When development of the driver is complete the
     customer is notified and can proceed with a product order (see  paragraph 3
     above).  Revenues for driver  development  are billed and  recognized  upon
     shipment or delivery of the related  product that  includes  the  developed
     protocol   drivers   (criteria   B,  as  noted  in   paragraph   3  above).
     Collectibility (criteria D) is reasonably assured as described in paragraph
     3 above.

In light of the  foregoing,  we  intend  to  disclose  our  revenue  recognition
policies in future filings with the Commission as follows:



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 4


Revenue Recognition

The Company  recognizes  revenues in accordance with Staff Accounting  Bulleting
("SAB") No. 104,  "Revenue  Recognition,"  when all of the following  conditions
exist:  a)  persuasive  evidence  of an  arrangement  exists  in the  form of an
accepted  purchase order; b) delivery has occurred,  based on shipping terms, or
services have been  rendered;  c) the  Company's  price to the buyer is fixed or
determinable,   as  documented   on  the  accepted   purchase   order;   and  d)
collectibility is reasonably  assured. By product and service type, revenues are
recognized when the following specific conditions are met:

Gas Detection and Environment Control Products
- ----------------------------------------------

Gas  Detection  and  Environment  Control  products  are  sold as  off-the-shelf
products with prices fixed at the time of order. Orders delivered to the Company
by phone,  fax,  mail or email are  considered  valid  purchase  orders and once
accepted by the Company are deemed to be the final understanding  between us and
our  customer  as to the  specific  nature  and  terms of the  agreed-upon  sale
transaction.  Products are shipped and are considered delivered when (a) for FOB
factory  orders they leave our shipping dock or (b) for FOB customer dock orders
upon confirmation of delivery.  The  creditworthiness  of customers is generally
assessed prior to the Company accepting a customer's first order.  Additionally,
international  customers and  customers who have  developed a history of payment
problems are generally required to prepay or pay through a letter-of-credit.

Gas Detection and Environment Control Services
- ----------------------------------------------

Gas Detection and Environment  Control  Services consist of field service orders
(technical  support)  and  training,  which are provided  separate  from product
orders. Orders are accepted in the same forms as discussed for Gas Detection and
Environment  Control  Products  above with  hourly  prices  fixed at the time of
order.  Revenue  recognition occurs only when the service activity is completed.
Such services are provided to current and prior customers,  and, as noted above,
creditworthiness  has  generally  already  been  assessed.  In cases  where  the
probability  of receiving  payment is low, a credit card number is collected for
immediate processing.

FieldServer Products
- --------------------

FieldServer  products  are  sold  in  the  same  manner  as  Gas  Detection  and
Environment  Control  products  (as  discussed  above)  except that the products
contain embedded software, which is integral to the operation of the device. The
software  embedded in FieldServer  products  includes two items:  (a) A compiled
program  containing (i) the basic operating  system for  FieldServers,  which is
common to every unit, and (ii) the correct set of protocol  drivers based on the
customer order (see FieldServer Services below for more information);  and (b) a
configuration  file that  identifies  and links each data point as identified by
the  customer.  The Company does not deem the hardware,  operating  systems with
protocol drivers and configuration files to be separate units of accounting,  as
defined  in EITF  00-21,  "Revenue  Arrangements  with  Multiple  Deliverables,"
because  the  Company  does not  believe  that they have value on a  stand-alone
basis.  The hardware is useless  without the software,  and the software is only



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 5


intended to be used in FieldServer hardware. Additionally, the software included
in each sale is deemed to not require  significant  production,  modification or
customization,  as described in  Statement  of Position  (SOP) 97-02,  "Software
Revenue  Recognition",  as amended, and therefore the Company recognize revenues
upon the  shipment or delivery of products  (depending  on shipping  terms),  as
described in Gas Detection and Environment Control Products above.

FieldServer Services
- --------------------

FieldServer  services  consist  of orders  for custom  development  of  protocol
drivers.  Generally customers place orders for FieldServer products concurrently
with their order for  protocol  drivers.  However if custom  development  of the
protocol  driver  is  required,   the  product  order  is  not  processed  until
development of the protocol driver is complete.  Orders are received in the same
manner as described in FieldServer  Products above, but due to the non-recurring
engineering  aspect of the  customized  driver  development  the Company is more
likely to have a written  evidence  trail of a quotation  and a hard copy order.
The  driver  development  involves  further  research  after  receipt  of order,
preparation  of a  scope  document  to be  approved  by the  customer  and  then
engineering time to write, test and release the driver program. When development
of the driver is  complete  the  customer is  notified  and can  proceed  with a
FieldServer  product  (see  FieldServer  Products  above).  Revenues  for driver
development  are billed and recognized  upon shipment or delivery of the related
product that includes the developed  protocol  drivers (as noted in  FieldServer
Products  above).   Collectibility   is  reasonably   assured  as  described  in
FieldServer Products above.

     2. Tell us and revise future  filings to discuss the types of discounts and
allowances  you offer as well as your terms for returns,  refund  rights and any
other  post  delivery  obligations  you have and how they  impact the amount and
timing of revenue recognized.

Response:
- ---------

In response to the Staff's comment, we supplementally  advise the Staff that the
Company  offers  products  for sale to end users at list  price.  Discounts  are
applied in the quote and  negotiation  period to encourage the customer to place
the order.  These  discounts  vary by project.  When  products  are sold through
representatives there is no discount applicable to a wholesale  distributor.  In
cases of repeat customers,  generally distributors or integrators,  we offer set
discounts. In all cases discounts range between 5% and 40%.

     1.   Discounts  are applied at time of order entry and sales are  processed
          at net pricing.

     2.   No allowances are offered to customers.



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 6


     3.   The Company  provides a warranty on all electronics  sold for a period
          of two years after the date of shipment.  Warranty  issues are usually
          resolved with repair or  replacement  of the product.  Trends of sales
          returns,  exchanges  and warranty  repairs are tracked as a management
          review  item in the  Company's  ISO  (International  Organization  for
          Standardization)  quality program and data generated from that program
          forms a basis for the reserve that management records in our financial
          statements.  Estimated future warranty  obligations related to certain
          products and services  are  provided by charges to  operations  in the
          period in which the related  revenue is  recognized.  At December  31,
          2004, warranty reserve approximated  $40,000,  which is recorded under
          other current liabilities on the balance sheet.

     4.   No refund rights are offered except for  occasional  returns to stock.
          We do not have a specific return policy, however,  returns are offered
          on a  case-by-case  basis.  Customers are generally  allowed to return
          product  to  stock  if they  ordered  the  wrong  part or have  excess
          inventory.  A 30%  restocking  fee is charged  for  returns,  which we
          believe  limits  our  future  exposure  to  returns.  Trends  of sales
          returns,  exchanges  and warranty  repairs are tracked as a management
          review  item in the  Company's  ISO  (International  Organization  for
          Standardization)  quality program and data generated from that program
          forms a basis for the reserve that management records in our financial
          statements.  During 2005 the total returns for credit are 1% of sales,
          which we deem to be immaterial.  The 1% return includes  circumstances
          where the customer returns one item and immediately  purchases another
          item. For  traceability  reasons we handle the transaction as a return
          and another sale, not an exchange.  Because our experience is that the
          level of returns, offset by new purchases, is such a low percentage of
          sales we do not delay recognition of any revenue for this purpose.

We maintain an allowance for doubtful  accounts  which is analyzed on a periodic
basis to insure that it is adequate to the best of  management's  knowledge.  We
believe that we have  demonstrated  the ability to make  reasonable and reliable
estimates of product  returns and of allowances  for doubtful  accounts based on
significant  historical  experience.  Trends  of sales  returns,  exchanges  and
warranty  repairs are tracked as a management  review item in the  Company's ISO
(International  Organization  for  Standardization)  quality  program  and  data
generated  from that  program  forms a basis  for the  reserve  that  management
records in our financial statements.

In light of the  foregoing,  we  intend  to  disclose  our  revenue  recognition
policies in future filings with the Commission as follows:

Discounts and Allowances
- ------------------------

Discounts  are  applied at time of order  entry and sales are  processed  at net
pricing. No allowances are offered to customers.



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 7


We intend to change the warranty  statement in Note 1-Summary of the Company and
Significant  Accounting Policies in future annual filings with the Commission as
follows:

The  Company  provides a warranty  on all  electronics  sold for a period of two
years after the date of  shipment.  Warranty  issues are usually  resolved  with
repair or  replacement of the product.  Trends of sales  returns,  exchanges and
warranty  repairs are tracked as a management  review item in the  Company's ISO
(International  Organization  for  Standardization)  quality  program  and  data
generated  from that  program  forms a basis  for the  reserve  that  management
records in our  financial  statements.  Estimated  future  warranty  obligations
related to certain  products and services are provided by charges to  operations
in the period in which the related revenue is recognized.  At December 31, 2004,
warranty  reserve  approximated  $40,000,  which is recorded under other current
liabilities on the balance sheet.

As there is no formal  return  policy  and the  historical  level of  returns is
immaterial, management does not intend to include a returns disclosure in future
filings.

     3. We note from your  website  that  sales  relating  to your  FieldServers
actually include software,  hardware,  training and technical support.  You make
mention that you offer free software in certain  instances.  Please tell us then
why you believe that you do not enter into multiple-element arrangements related
to the sales of  FieldServers.  Specifically,  please tell us and revise  future
filings  to address  how you  allocate  total  consideration  for  multi-element
transactions  and how you  determine  fair  value,  particularly  when there are
undelivered elements such as installation and training.

Response:
- ---------

In response to the Staff's  comment,  we respectfully  advise the Staff that the
Company  does not deem  FieldServer  hardware,  operating  system with  protocol
drivers and configuration  files to be separate units of accounting,  as defined
in EITF 00-21, "Revenue Arrangements with Multiple  Deliverables," because we do
not believe that they have value on a stand-alone basis, which is also discussed
in the  response to item #1 above.  With  respect to the issues of hardware  and
software sales, please see the response to item #1 above.

Training  is offered on a fee basis only and it is not linked to the sale of the
hardware/software package. Generally, when a customer determines that it will be
a repeat  customer,  it may  sign up to  attend  a fee  based  class so that the
customer can do more  configuration  work and better understand the capabilities
of the  product.  Training  is a single  element  sale on a stand  alone  basis.
Training  revenue  is  recognized  in  the  same  manner  as Gas  Detection  and
Environment Control Services, as discussed in the response to item #1 above.

Technical  support is offered on a fee basis.  A customer  who does not purchase
our  configuration  service  can call the  Company and obtain 30 minutes of free
telephone  support,  which is  deemed  insignificant.  At the  beginning  of the
contact,  the  customer  is  advised  that he  will  need  to  purchase  further



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 8


assistance on a fee basis by providing a credit card number.  Technical  support
revenue  is  recognized  in the same  manner as Gas  Detection  and  Environment
Control Services, as discussed in the response to item #1 above.

The Company does not offer  installation  services except in rare instances.  In
such cases  installation  is quoted and  orders are booked  separately  from the
Product sale and the order is invoiced after the services have been performed at
the customer's site, in the same manner as Gas Detection and Environment Control
Services, as discussed in the response to item #1 above.

We note the Staff's  reference to free  software  which we believe is related to
Free Modbus  Source Code  offered on the  ProtoCessor  website.  The software is
simply a demonstration  package that is not sold or linked to any other sale and
therefore does not contribute to a multiple element arrangement. It is available
for free at random other websites and is considered a marketing tool.

??? Paul Shinn:  Should we make a statement that we will not be changing  future
filings??

Note 11 - Segment Reporting, page F-17
- --------------------------------------

     4. We noted your discussion of the three main products  groups,  consisting
of gas detection devices,  environmental controllers and communications bridges,
in the business section and in the management's discussion and analysis section.
We also noted that each group  contributed  more than 10% of total  revenues  in
each of the  years  presented.  Furthermore,  we note you have a fourth  product
group or  "business  unit" which you refer to as the OEM  Coprocessors,  on your
website but not mentioned in your filing. Based on this information, please tell
us why you believe that you only operate in one operating segment.  Also tell us
why these product groups or business units do not represent  separate  operating
and reporting segments of your company in accordance with SFAS 131.

Response:
- ---------

In response to the Staff's  comment,  we respectfully  advise the Staff that our
analysis of whether the Company operates in a single reporting  segment is based
in our understanding of Statement of Financial Accounting Standards ("SFAS") No.
131, "Disclosures about Segments of an Enterprise and Related Information." SFAS
No. 131 defines an operating  segment as a component of an  enterprise  (a) that
engages  in  business  activities  from  which it may earn  revenues  and  incur
expenses, (b) whose operating results are regularly reviewed by the enterprise's
chief operating decision maker to make decisions about resources to be allocated
to the  segment  and to  assess  its  performance,  and (c) for  which  discrete
financial information is available.  We believe that we appropriately report our
operations as being in only one segment for the following reasons:



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 9


     1.   Our chief  operating  decision maker,  Gordon Arnold (Chief  Executive
          Officer and Chief Financial Officer), only reviews revenues by product
          line. He does not review  costs,  assets or  profitability  by product
          line. Costs,  assets,  and the results of operations are only reviewed
          on an entity-wide basis.

     2.   As Mr.  Arnold does not review  costs,  assets,  or  profitability  by
          product line,  such  information  has never been tracked or internally
          reported (i.e. discrete financial information only exists for revenues
          by product line, which we have disclosed).

     3.   As stated in  paragraph 6 of SFAS No. 131,  "this  Statement  requires
          that an  enterprise  report a measure  of  segment  profit or loss and
          certain items included in determining  segment profit or loss, segment
          assets, and certain related items." We do not believe that we would be
          able  to  develop  such   information  for  each  product  line  in  a
          cost-effective  or timely manner,  and based on our current  financial
          condition, such costs would be excessive.

     4.   Because our chief  operating  decision  maker does not make  decisions
          based on costs,  assets,  or  profitability  by  product  line as such
          information does not exist and the cost to develop such information is
          deemed to be  excessive,  we do not believe that our product lines are
          separate  "segments"  as defined by SFAS No. 131,  and  therefore  the
          quantitative  thresholds  of  paragraph  18 of  such  Statement  (e.g.
          segment  revenues  greater  than  10% of  combined  revenues)  and the
          disclosure requirements of this Statement do not apply.

Regarding our OEM Coprocessors (also known as the "ProtoCessor") we had no sales
of such  product  for the  year  ended  December  31,  2004,  and we have had no
significant sales since such date. Additionally,  we consider the ProtoCessor to
be a subset of our FieldServer line of products, as both ProtoCessors  (protocol
coprocessors)   and   FieldServers   (protocol    translators/gateways)    allow
interoperability  of devices  through the use of a similar  driver  library.  As
such, we plan to discuss ProtoCessor sales in conjunction with FieldServer sales
in future disclosures when such sales become significant.

Note 7 - Warrants, page F-14
- ----------------------------

     5. Please tell us why you deferred  $30,800 of expense relating to the fair
value of a warrant granted to a consultant in 2004.

Response:
- ---------

In response to the Staff's  comments,  we note that  Emerging  Issues Task Force
("EITF") Issue No. 96-18,  "Accounting for Equity Instruments That Are Issued to
Other Than Employees for Acquiring,  or in  Conjunction  with Selling,  Goods or
Services" and SFAS No. 123, "Accounting for Stock-Based  Compensation" establish
the  measurement  principles for  transactions  in which equity  instruments are
issued in exchange for the receipt of goods or services. Paragraph 8 of SFAS No.
123 states that those  transactions  should be measured at the fair value of the
consideration  received  or the fair  value of the  equity  instruments  issued,
whichever  is more  reliably  measurable.  We believe that the fair value of the
warrants to be more  reliably  measurable  than an estimate of the fair value of



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 10


the services  obtained because we have no prior history with this consultant and
no historical base for estimating the value of the services to be provided. SFAS
No. 123 does not, however, prescribe the measurement date or provide guidance on
recognition of the cost of those transactions. In EITF No. 96-18, the Task Force
reached a consensus  that an expense would be  recognized in the same  period(s)
and in the same  manner  as if the  enterprise  had paid  cash for the  goods or
services.

In December  2004, we entered into a consulting  agreement  with an  independent
contractor.  Such  contract is to  terminate  the earlier of the  completion  of
services, 14 days written notification of either party, or breach of contract by
the  consultant.  Warrants to acquire  110,000 shares of our  restricted  common
stock at $0.65 per share  were  granted  at the  inception  of the  contract  as
compensation for services to be provided. We estimated that approximately 50% of
the services  were provided  prior to December 31, 2004,  and the balance of the
services  was to be  provided  in  2005.  Had we paid  cash up front  for  these
services,  we would have  recorded  the  related  expense as the  services  were
performed  (in this case 50% in 2004),  and we would have  deferred as a prepaid
expense any amounts related to services not performed by December 31, 2004 (i.e.
the matching principle).

The  contract  was  not  deemed  to have a  commitment  for  performance  by the
contractor,  as  defined in EITF No.  96-18,  so the  measurement  date for this
transaction was deemed to be the completion of services by the contractor.  EITF
No.  96-18  allows for  transactions  where the quantity and terms of the equity
instruments  are known up front (as described in the preceding  paragraph)  that
when it is appropriate under generally  accepted  accounting  principles for the
issuer to  recognize  any cost of the  transaction  during  financial  reporting
periods prior to the measurement date (as noted in the preceding paragraph), for
purposes of  recognition  of costs during those  periods the equity  instruments
should be measured at their  then-current  fair values at each of those  interim
financial  reporting  dates.  Using the  Black-Scholes  option pricing model, we
valued the warrants at  approximately  $62,000 at the date of grant. We noted no
significant  changes in the estimated  fair value of such  warrants  between the
date of grant and December 31, 2004,  so 50% was expensed  prior to December 31,
2004, with the balance ($30,800) deferred until services were completed in 2005.

Exhibit 31
- ----------

     6. We note  that the  certifications  filed in  Exhibit  31 were not in the
proper form. The required  certifications  must be in the exact form prescribed;
the wording of the  required  certification  may not be changed in any  respect,
except  for the  modification  temporarily  permitted  to be made to the  fourth
paragraph  of the  certification  required to be filed as Exhibit 31 pursuant to
Part III.E of Release No.  8238.  Accordingly,  please amend your Form 10-KSB to
comply with Item 601(b)(31) of Regulation S-B.



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 11


Response:
- ---------

We respectfully advise the Staff that the Company's Form 10-KSB has been amended
to comply with Item  601(b)(31) of Regulation  S-B. Please see our Form 10-KSB/A
filed on November 14, 2005.

Forms 10-QSB for the quarters ended March 31, and June 30, 2005
- ---------------------------------------------------------------

Notes to the Unaudited Interim Condensed Financial Statements, page 5
- ---------------------------------------------------------------------

a) Revenue Recognition, page 5
- ------------------------------

     7. We note that you have expanded  your footnote to now include  government
contracts.  Please tell us further the nature of your  government  contracts and
why you believe that  accounting for them including the percentage of completion
method is appropriate.

Response:
- ---------

In response to the Staff's comment, we note that the paragraph regarding revenue
recognition  from government  contracts was  inadvertently  included in our Form
10-QSB  filings for the periods  ended March 31, 2005 and June 30, 2005.  In the
past  it was  our  practice  to  account  for  government  contracts  using  the
percentage  of  completion  method,  but  since  we do not  currently  have  any
government  contracts and do not anticipate any government contracts in the near
term, we will remove the statement from future filings.

Item 3 - Controls and Procedures, page 12
- -----------------------------------------

     8.  We note  your  disclosure  that  management  has  concluded  that  your
disclosure  control and procedures are effective "to ensure that  information we
are required to disclose in reports that we file or submit under the  Securities
and Exchange Act of 1934 is recorded, processed,  summarized and reported within
the time  periods  specified  in SEC  rules and  forms."  The  language  that is
currently  included after the word "effective" in your disclosure  appears to be
superfluous,  since the  meaning of  "disclosure  controls  and  procedures"  is
established by Rule 13a-15(e) of the Exchange Act.  However,  if you do not wish
to eliminate  this  language,  please revise future filings so that the language
that appears after the word "effective" is substantially similar in all material
respects to the language that appears in the entire  two-sentence  definition of
"disclosure controls and procedures" set forth in Rule 13a-15(e).

Response:
- ---------

We note the Staff's  comment and will revise  future  filings to  eliminate  the
superfluous  language  identified  by  the  Staff  in the  Company's  disclosure
regarding management's controls and procedures.



Securities and Exchange Commission
Attention:  Kate Tillan
November 18, 2005
Page 12


In connection with this response to the Comment Letter the Company  acknowledges
that:

     o    the  Company is  responsible  for the  adequacy  and  accuracy  of the
          disclosure in the filings referenced above;

     o    staff  comments or changes to disclosure in response to staff comments
          do not foreclose the Commission from taking any action with respect to
          the filing; and

     o    the  Company  may  not  assert  staff  comments  as a  defense  in any
          proceeding initiated by the Commission or any person under the federal
          securities laws of the United States.

     Should the Staff have any additional comments or questions,  please contact
me at (408)  262-6611 ext. 120. We  respectfully  request that the Staff confirm
that it has no additional requests or comments.


                                          Sincerely,


                                          Gordon R. Arnold


                                          ________________________________
                                          Chief Financial Officer



cc: Gordon R. Arnold - Chief Executive Officer,
        Chairman of the Board of Directors
    C. Richard Kramlich - Chairman of the Audit Committee
    Ray Hermanson - Squar, Milner, Reehl & Williamson, LLP
    Paul Shinn - Wilson Sonsini Goodrich & Rosati, P.C.