TECHNOLOGY TRANSFER AGREEMENT


     THIS  TECHNOLOGY TRANSFER AGREEMENT (the "Agreement") dated as of September
18,  2002  is  entered  into  by  and  between  DCH Technology, Inc., a Delaware
corporation  ("Seller"),  and  H2SCAN,  a  Washington  limited liability company
("Buyer").
                                    RECITALS

     A.     DCH Sensors, Inc. ("Sensors"), a wholly-owned subsidiary of  Seller,
is  engaged  in  the  business  of  licensing,  developing  and  commercializing
hydrogen-specific  gas  sensors  (the  "Business").  Certain of the intellectual
property  used  by  Sensors in the Business is owned by Seller (the "Assets," as
more  specifically  described  below  in  Section  1).

     B.     Sensors is in the process of an Assignment for Benefit of Creditors,
from  Sensors to  The C.F. Boham Campany, Inc., dba The Hamer Group ("Assignee")
with  respect  to  certain  assets  necessary to operate the business of Sensors
("ABC").  Assignee intends to sell all of the assets received by it from Sensors
to  Buyer,  a  recently  formed  Washington  limited  liability  company.

     C.     In order to allow Buyer to operate the Business as formerly operated
by  Sensors,  Seller desires to sell to Buyer, and Buyer desires to purchase the
Assets  from  Seller, in accordance with the terms and subject to the conditions
hereinafter  set  forth.

                                    AGREEMENT

     NOW  THEREFORE,  for  good  and  valuable  consideration,  the  receipt and
sufficiency  of  which  is  hereby  acknowledged,  the parties agree as follows:

     1.     SALE AND PURCHASE OF THE ASSETS

          (a)     Description  of  Assets  to  be  Acquired.  Upon the terms and
                  -----------------------------------------
subject  to  the conditions set forth in this Agreement, at the Closing Date (as
defined  in  Section  6 of this Agreement), Seller shall convey, sell, transfer,
assign,  and  deliver to Buyer, and Buyer shall purchase from Seller, all right,
title and interest of Seller at the Closing Date in and to all of the assets set
forth  below:

               (i)     Contracts.  All  of  Seller's  rights under those certain
                       ---------
agreements,  contracts,  contract  rights,  licenses and licensing agreements as
listed  on  Exhibit  A  (collectively,  the  "Contracts");  and
            ----------                        ---------

               (ii)     Intellectual  Property  and  Intangible  Assets.  All
                        -----------------------------------------------
intangible  assets  owned  by  Seller  and  used,  usable or held for use in, or
otherwise required for the services of the Business including but not limited to
the  licenses,  United  States  patent  rights,  patents,  patent  applications,
provisionals,  divisionals,  continuations,  continuations-in-part, reissuances,
renewals,  re-examinations,  additions  and  extension  of  any such patents and
patent  applications,  any  foreign  counterparts  thereof and any related US or
foreign  patents  that  may  issue  therefrom  in  the  future  (the "Patents"),
trademarks,  trademark  applications,  trade  names, service marks, service mark
applications  (whether  such  marks  are  registered  or  at  common  law)(the
"Trademarks"),  all  inventions  (whether  patentable  or  not),  invention


Technology Transfer Agreement - Execution 1

disclosures,  improvements,  know-how,  trade  secrets,  copyrights  (whether
registered  or  not)  proprietary information, computer programs, software code,
source  and  object  code,  technology and technical data, and all documentation
relating  to  any  of  the  foregoing  (collectively, the "Proprietary Rights"),
including  without limitation those listed on Exhibit B attached hereto, and all
                                              ---------
of  Seller's  causes of action, judgments and claims or demands of whatever kind
or  description  arising  out  of  or  relating  to  the  Business;

               (iv)     Permits and Licenses.  All permits, licenses, product
                        --------------------
registrations, filings, authorizations, approvals or indicia of authority (and
any pending applications for any thereof) issued by any governmental agency,
authority or other instrumentality of the United States or any state or any
foreign country or political subdivision thereof relating to the Proprietary
Rights; and

               (iii)     Books and Records.  All prototypes, samples, equipment,
                         -----------------
records, files, papers, drawings, engineering information, computer programs,
manuals and data, originals of all tangible records relating to the Proprietary
Rights and Patent certificates, Copyright or Trademark registrations thereof,
research and development records, and copies or originals of all customer
records, vendor records, financial and procedures information relating to
customers, files, papers and all other records relating to the Business
(collectively, the "Records").

          (b)     The  assets,  properties,  and  rights  to  be conveyed, sold,
transferred,  assigned  and  delivered  to  Buyer pursuant to this Section 1 are
hereinafter  collectively  referred  to  as  the  "Assets."

     2.     PURCHASE PRICE.  The aggregate purchase price ("Purchase Price") for
the Assets shall be One Hundred Thousand Dollars ($100,000).  The Purchase Price
shall  be  paid  at  the  Closing (as defined in Section 6) via wire transfer or
certified  check.

     3.     OWNERSHIP RIGHTS

          (a)     Ownership.  As of the Closing Date, Buyer shall own all right,
                  ---------
title and interest in and to the Assets and Seller and Sensors shall have no
right, title or interest therein or thereto.

          (b)     Enforcement of Rights.  Buyer shall have the sole right to
                  ---------------------
control and the sole right to prosecute and/or enforce all Patents and
Trademarks and all infringements of Proprietary Rights by third parties, at
Buyer's expense, which rights Buyer may exercise in its sole and absolute
discretion.

          (c)     Further Assurances.  Seller shall, upon the request of Buyer,
                  ------------------
reasonably cooperate with and assist Buyer in filing, prosecuting ,perfecting
and/or enforcing all US and foreign Patent, Trademark and/or Copyright  to which
Buyer is entitled with respect to the Assets to the extent permitted or made
necessary by statute, regulation or government agency, including, without
limitation, executing and delivering all documents in connection therewith;
provided that Buyer shall reimburse Seller for reasonable out-of-pocket costs
and expenses incurred by Seller in connection with such cooperation.  All such
Patents and Copyrights shall be applied for in the names of the actual inventors


Technology Transfer Agreement - Execution 2

or authors and shall be assigned to Buyer, and Seller shall execute and deliver
such forms of assignment, powers of attorney and/or other documents which are
necessary to give effect to the provisions hereof.

          (d)     Power of Attorney.  In the event that Seller is unable or
                  -----------------
unwilling to fully perform its  obligations under Section 3(c) above, Seller
hereby irrevocably designates and appoints Buyer or its assigns and their duly
authorized officers and agents as Seller's agents and attorneys-in-fact to act
for and in Seller's behalf and instead of Seller, to execute and file any
Patent,  Trademark or Copyright  application or other document relating to the
Assets and to do all other lawfully permitted acts in connection with any of the
Assets.

     4.     REPRESENTATIONS AND WARRANTIES OF SELLER. Except as specifically set
forth  in Seller's disclosure schedule, Seller hereby represents and warrants to
Buyer  that:

          (a)     Incorporation and Authority.  Seller  is  a  corporation  duly
                  ---------------------------
organized,  validly existing and in good standing under the laws of the State of
Delaware  and has all necessary corporate power and authority to enter into this
Agreement,  to  carry  out  its  obligations  hereunder  and  to  consummate the
transactions  contemplated  hereby  and  thereby.  The execution and delivery of
this Agreement by Seller, the performance by Seller of its obligations hereunder
and  thereunder  and the consummation by Seller of the transactions contemplated
hereby and thereby have been duly authorized by all requisite action on the part
of Seller, and to the best of Seller's knowledge after consulation with Seller's
legal  counsel,  no  approval  of  the  shareholders  of  Seller  is  required.

          (b)     Governmental  Consents  and  Approvals.  Seller shall promptly
                  --------------------------------------
record  the  sale  of  its  Proprietary Rights with the United States Patent and
Trade  Mark  Office  ("USPTO")  or  other  appropriate  office.

          (c)     Validity, Execution.  This Agreement has been duly and validly
                  -------------------
executed and delivered by Seller, and constitutes a valid and binding obligation
of  Seller,  enforceable  in  accordance  with  its  terms.

          (d)     No  Breach.  To  the  best  of  Seller's  knowledge,  the
                  ----------
consummation  of  the  transactions  contemplated  hereby will not result in any
breach  of,  or  constitute  a  default  under,  any material agreement or other
instrument  or  obligation  to  which  Seller  is  a party or by which Seller or
Seller's  property  is  bound,  and will not result in the creation of any lien,
charge  or  encumbrance  upon  any  of  the  Assets.

          (e)     Rightful  Owner.  Prior to execution of this Agreement, Seller
                  ---------------
was  the  sole  and  exclusive owner of all of the Assets and, as of the Closing
Date,  Seller  conveys to Buyer full, absolute, good and marketable title to the
Assets,  to  the  best  of  Seller's  knowledge,  free  and  clear of all liens,
liabilities,  charges  or  other  encumbrances  of  any  kind.

          (f)     No Previous Grants.  Other than this Agreement, to the best of
                  ------------------
Seller's knowledge, Seller has not previously granted, and will not grant, any
rights in conflict with the rights assigned to Buyer herein;

          (g)     No Third Party Intellectual Property.   To the best of
                  ------------------------------------
Seller's knowledge, except for the rightful use of licenses under the Contracts
listed on Exhibit A attached hereto, no proprietary technology or materials of
any third party is incorporated in any way in the Assets;


Technology Transfer Agreement - Execution 3

          (h)     No Infringement.  To the best of Seller's knowledge, neither
                  ---------------
the Assets, nor any part thereof, as delivered and provided by Seller to Buyer,
infringes upon any intellectual property right of any third party, and to the
best knowledge of Seller, there is no infringement on the part of any third
party of the Assets; and

          (i)     No Claims.  There is no pending nor, to the best knowledge of
                  ---------
Seller, threatened claim or litigation contesting the validity, ownership or
right to sell, use, license or dispose of the Assets or any portion thereof nor,
to the best knowledge of Seller, is there any basis for any such claim, nor has
Seller received any notice asserting that any such portion of the Assets or the
proposed use, sale, license or disposition thereof conflicts or will conflict
with the rights of any other party, nor to the best knowledge of Seller is there
any basis for any such assertion.

          (i)     Operation of Business.  The Assets, together with the Acquired
                  ---------------------
Assets (as defined in that certain Asset Sale Agreement between the Assignee and
Buyer of even date herewith) constitutes all assets or property of any kind
required to operate the business of Sensors as it has been operated prior to the
ABC.

     5.     REPRESENTATIONS AND WARRANTIES OF BUYER.  Except as specifically set
forth in the disclosure schedule, Buyer hereby represents and warrants to Seller
that:

          (a)     Organization.  Buyer is a Washington limited liability company
                  ------------
duly  organized,  validly  existing  and  in good standing under the laws of the
State of Washington and has all necessary power and authority to enter into this
Agreement,  to  carry  out  its  obligations  hereunder  and  to  consummate the
transactions  contemplated hereby.  The execution and delivery of this Agreement
by  Buyer,  the  performance  by  Buyer  of  its  obligations  hereunder and the
consummation  by  Buyer  of  the transactions contemplated hereby have been duly
authorized  by  all  requisite  action  on  the  part  of  Buyer.

          (b)     Validity, Execution.  This Agreement has been duly and validly
                  -------------------
executed  and delivered by Buyer, and constitutes a valid and binding obligation
of  Buyer,  enforceable  in  accordance  with  its  terms.

          (c)     No Breach.  To the best of Buyer's knowledge, the consummation
                  ---------
of  the  transactions  contemplated  hereby will not result in any breach of, or
constitute  a  default  under,  any  material  agreement  or other instrument or
obligation  to  which  Buyer  is  a  party.

     6.  THE CLOSING.

          (a)     Date and Location.  The closing (the "Closing") of the
                  -----------------
transactions provided for herein shall take place at the offices of Buyer, by
5:00p.m., local time, on September 18, 2002 or at such other time and place as
Seller and Buyer may agree upon in writing (the "Closing Date").  The
transactions contemplated herein may be closed via the exchange of facsimile
signature pages followed by overnight delivery of original executed documents.


Technology Transfer Agreement - Execution 4

The Closing is contingent upon the execution of certain other documents,
including without limitation the following: (i) the purchase of assets by Buyer
from Assignee pursuant to the Asset Sale Agreement of even date herewith; (ii)
the execution of the LLC Agreement for H2scan LLC, and receipt by H2scan of the
capital investments outlined therein; and (iii) the amendment of the Sandia
License (as defined below in Exhibit A) in form satisfactory to Buyer.

          (b)     Documents  Delivered  by Seller.  At the Closing, Seller shall
                  --------------------------------
deliver  to  Buyer,  all  duly  and  properly  executed,  the  following:

               (i)     An  Officer's Certificate executed by the President of
Seller, dated as of the Closing, certifying that all of Seller's representations
and warranties are true and correct as of the Closing Date and Seller has
performed all of its covenants and obligations required to be performed by it on
or prior to Closing;

               (ii)    (ii)   An  Assignment  Agreement  transferring  Seller's
rights,  title  and  interest  to  the  Trademarks;

               (iii)   Resolution  of  the  Board  of  Directors  of  Seller
approving  the  sale  of  Assets;  and

               (iv)    Consent  of  Sandia  Corporation  ("Sandia")  where
applicable.

          (c)     Documents and Instruments delivered by Buyer.  At the Closing,
                  --------------------------------------------
Buyer  shall  deliver  to Seller, all duly and properly executed, the following:

               (i)     An  Officer's  Certificate  executed  by the President of
Buyer,  dated  as of the Closing, certifying that all of Buyer's representations
and  warranties  are  true  and  correct  as  of  the Closing Date and Buyer has
performed all of its covenants and obligations required to be performed by it on
or  prior  to  Closing;

               (ii)    The  consideration  set  forth  in Section 2 hereof; and

               (iii)   Resolutions  of  the  Board  of  Directors  of  Buyer
approving  the  purchase  of  the  Assets.

          (d)     Delivery  of  Possession  of  the Assets.  Simultaneously with
                  ----------------------------------------
such deliveries, Seller will take all such steps as may be requested by Buyer to
put  Buyer  in  actual  possession  and  operating  control  of  the  Assets.

     7.     CONDITIONS PRECEDENT TO OBLIGATIONS OF BUYER.  All of the
obligations of Buyer under this Agreement are subject to the fulfillment prior
to or on the Closing Date of each of the following conditions, any of which
Buyer may waive in whole or in part:

          (a)     Representations True.  All representations and warranties made
                  --------------------
by Seller in this Agreement, or in any written statement delivered by Seller to
Buyer pursuant to this Agreement, shall be true on and as of the Closing Date as
though such representations and warranties were made at and as of such date.


Technology Transfer Agreement - Execution 5

          (b)     Performance.  Seller shall have performed and complied with
                  -----------
all agreements or conditions required by this Agreement to be performed and
complied with by Seller prior to or on the Closing Date.

          (c)     Delivery of Documents.  There shall have been delivered to
                  ---------------------
Buyer the documents and instruments set forth in Section 6.

     8.     CONDITIONS  PRECEDENT  TO  OBLIGATIONS  OF  SELLER.  All  of  the
obligations  of Seller under this Agreement are subject to the fulfillment prior
to  or  on  the  Closing  Date of each of the following conditions, any of which
Seller  may  waive  in  whole  or  in  part:

          (a)     Representations  True.  All  representations  made by Buyer in
                  ----------------------
this Agreement or in any written statement delivered by Buyer to Seller pursuant
to  this  Agreement  shall  be true and correct as of the Closing Date as though
such  representations  and  warranties  were  made  as  of  such  date.

          (b)     Performance  by  Buyer. All  covenants,  conditions and other
                  -----------------------
obligations  under  this  Agreement that are to be performed or complied with by
Buyer  shall  have  been  fully  performed  and complied with at or prior to the
Closing,  including  the  delivery  of  the  instruments  and  documents;

          (c)     Delivery  of  Documents.  There  shall  have been delivered to
                  -----------------------
Seller  the  documents  and  instruments  set  forth  in  Section  6.

     9.     TRANSFER  AND  FURTHER  ASSURANCES.  From  time  to  time  after the
Closing  Date,  at  the  request  of  Buyer,  Seller  shall,  without  further
consideration,  deliver such further instruments of transfer and take such other
actions as may be reasonably necessary in order to more effectively transfer any
of  the  Assets  to  Buyer.

     10.     MISCELLANEOUS.

          (a)     Expenses.  Each  party shall bear its own expenses incurred in
                  --------
connection  with  this  Agreement  and  the  transactions  contemplated  hereby.

          (b)     Binding  Effect.  This  Agreement  shall  be  binding upon and
                  ---------------
shall  inure  to  the  benefit  of  the  parties,  and  their  heirs,  personal
representatives,  executors,  administrators  and  assigns.

          (c)     Attorneys'  Fees.  Should  any litigation be commenced between
                  ----------------
the  parties hereto, or their personal representatives, concerning any provision
of  this  Agreement, or the rights and duties of any person in relation thereto,
the  party  or  parties  prevailing  in  such  litigation  shall be entitled, in
addition  to  such  other  relief as may be granted, to a reasonable sum for its
attorneys'  fees  and  costs in such litigation which shall be determined by the
court  in  such  litigation  or  in  a separate action brought for that purpose.

          (d)     Entire  Agreement.  This  Agreement  including  the  Exhibits
                  -----------------
hereto,  contains the entire agreement of the parties hereto, and supersedes any
prior  written  or  oral  agreement  between  them concerning the subject matter
hereof.  There  are  no  representations,  agreements,  arrangements  or
understandings,  oral  or  written,  between the parties hereto, relating to the


Technology Transfer Agreement - Execution 6

subject  matter  hereof,  which  are  not  fully  expressed  or  incorporated by
referenced  herein.

          (e)     Governing Law.  All questions with respect to the construction
                  -------------
of  this Agreement and the rights and liabilities of the parties hereto shall be
governed  by  the  laws  of  the  State  of  California.

          (f)     Notices.  Whenever this Agreement provides for the delivery of
                  -------
a notice or other communications, it shall be deemed sufficient if in writing
and served either personally by United States mail, or a reputable overnight
mail carrier postage prepaid, addressed as follows:

             BUYER :     H2SCAN
                         16560 Vasquez Canyon Road
                         Canyon Country, CA 91351
                         Phone: (661) 775-9575
                         Fax: (661) 775-9515
                         Attention:     Steven A. Huenemeier
                                        President

     SELLER:             DCH Technology, Inc.
                         24832 Avenue Rockefeller
                         Valencia, California 91355
                         Phone:  (661) 775-8120
                         Attention:     John Donohue
                                        Chief Executive Officer

Any notice so sent shall be deemed received the same day if delivered
personally, the next day if sent by overnight mail, or three days after mailing
if sent by U.S. mail.

          (g)     Amendments.  This Agreement may be waived, altered, amended or
                  ----------
repealed, in whole or in part, only by the written consent of both Buyer and
Seller.

          (h)     Counterpart Execution.  This Agreement may be executed in any
                  ---------------------
number of counterparts, each of which shall be an original, but all of which
shall constitute one instrument.

          (i)     Severability.  If one or more provisions of this Agreement are
                  ------------
held to be unenforceable under applicable law, such provision shall be excluded
from this Agreement and the balance of the Agreement shall be interpreted as if
such provision was so excluded and shall be enforceable in accordance with its
terms.

          (j)     Equitable Remedies.  It is understood and agreed that breach
                  ------------------
of this Agreement will cause irreparable damage for which recovery of money
damages would be inadequate, and that any party may seek timely injunctive
relief, without obligation to post a bond, to protect such party's right in
addition to any and all remedies available at law.

          (k)     Confidentiality.  Seller agrees to treat the Assets as
                  ---------------
confidential information and will take reasonable steps to keep the Assets
confidential.


Technology Transfer Agreement - Execution 7

          (l)     Non-Waiver.  No term or provisions hereof shall be deemed
                  ----------
waived, and no breach excused unless such waiver or consent shall be in writing
and signed by the party claimed to have waived or consented.  Any consent by any
party to, or waiver of, a breach by the other, whether express or implied, shall
not constitute a consent to, waiver of, or excuse for any other different or
subsequent breach.

          (m)     Assignment.  This Agreement shall inure to the benefit of and
                  ----------
be binding upon each party's successors and assigns.


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Technology Transfer Agreement - Execution      8

     IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed date first above written.


BUYER:                              H2SCAN LLC

                                    By:  /s/ Steven A. Huenemeier
                                         ------------------------
                                    Its: President and CEO
                                         ------------------------


SELLER:                             DCH TECHNOLOGY, INC.

                                    By:  /s/ John T. Donohue
                                         ------------------------
                                    Its: Chief Executive Officer
                                         ------------------------


TABLE OF EXHIBITS
- -----------------


EXHIBIT A -     Contracts
EXHIBIT B -     Intellectual Property & Intangible Assets



Technology Transfer Agreement - Execution 9

                                    EXHIBIT A
                                    ---------
                                    CONTRACTS



1.   License Agreement between Sandia Corporation and DCH Technology, Inc.,
     License No. 96-C00333, as amended (together, the "Sandia License).



Technology Transfer Agreement - Execution 10

                                    EXHIBIT B
                                    ---------

                    INTELLECTUAL PROPERTY & INTANGIBLE ASSETS


TRADEMARKS AND SERVICE MARKS
- ----------------------------


                             REGISTRATION
                             ------------
       MARK                     NUMBER       REGISTRATION DATE
       ----                     ------       -----------------

ROBUST HYDROGEN SENSOR          2459306        June 12, 2001

HYDROGEN IS THE FUTURE, WE
CAN SENSE IT                    2561317       April 16, 2002

H2SCAN                      Not registered.

PATENTS
- -------

NONE
- ----


Technology Transfer Agreement - Execution 11