EXHIBIT 10.3.2

This is an addendum  ("Addendum  No. 3") dated  January 27, 1997 to that certain
Standard  Industrial/Multi-Tenant  Lease Form  dated  October  22,  1989 for the
premises known as 3233 Investment Boulevard,  Hayward, California by and between
Sunlife  Assurance Company of Canada  ("Lessor") and Cholestech  Corporation,  a
California Corporation ("Lessee"),

                                    RECITALS

WHEREAS, Lessor and Lessee are parties to a lease dated October 22, 1989 for the
premises known as 3233 Investment Boulevard, Hayward,  California (the "Lease"),
hereinafter referred to as 3347 Investment Boulevard, Hayward, California;

WHEREAS,  the term of the lease  expires  March 31, 1996,  and was  subsequently
amended due to construction  delays to commence July 25, 1990 and expire on July
24, 1996.

WHEREAS,  Lessor and Lessee  agreed to modify the  existing  lease  agreement to
extend  this  lease for a period of five (5) years  beginning  April 1, 1995 and
ending March 31, 2000.

WHEREAS,  Lessor and  Lessee  desire to amend the lease in  accordance  with the
terms and conditions hereafter set forth.

61.  Expansion of Premises:
     Lessee shall expand the Premises by 10,317 square feet  (expansion),  for a
     total of 40,317 square feet under lease. Lessee shall lease expansion space
     in its "as-is" condition.

62.  Tenant Improvements:
     The  Landlord  and Tenant  agree that the  building,  to be finished in its
     "as-is"  condition by Landlord  without charge to Tenant  hereunder,  shall
     consist of a concrete floor; concrete tilt-up exterior walls, unpainted and
     uninsulated;  a  roof,  uninsulated;   and  existing  sprinklers  shall  be
     operational in accordance  with code.  Acceptance by Tenant of such "as-is"
     condition  relieves  Landlord of any further  responsibility of any kind or
     character for improvement of the Premises.

     Lessee,  at Lessee's  sole cost and expense  shall be  responsible  for the
     construction of the tenant  improvements which shall be based substantially
     upon the preliminary floor plan shown on Exhibit "B".

     Lessee shall undertake and diligently  complete the tenant  improvements in
     accordance  with  plans  and  specifications  to be  mutually  approved  by
     Landlord  and  Tenant.  Lessee's  work  shall  conform  to  all  applicable
     governmental  codes, laws and regulations in force at the time such work is
     completed.

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63.  Lease Rate:

     Months (existing premises)              Per Month/NNN*
     April 1, 1995 - September 30, 1997      $16,200.00 ($0.54/square foot NNN)
     October 1, 1997- March 31, 2000         $17,100.00 ($0.57/square foot NNN)

     In  addition  to the rate  schedule  listed  above,  Lessee  shall  pay the
     following rental for the expansion premises.

     Months (expansion Premises)             Per Month/NNN
     April 1, 1997 - March 31, 1998          $2,400.00 ($0.232/square foot NNN)
     April 1, 1998 - March 31, 1999          $3,000.00 ($0.29/square foot NNN)
     April 1, 1999 - March 31, 2000          $3,500.00 ($0.34/square foot NNN)

     (*For clarification  purposes,  NNN expenses are currently $0.16 per square
     foot, as of March 1997)

64.  Expansion Premises Occupancy and Rent Commencement:
     Occupancy of the expansion premises and commencement of rent shall be April
     1, 1997.

65.  Pro Rata Share:
     Lessee's  pro rata  share  shall be  60.0993  percent  of the Eden  Landing
     Corporate Center.

Except as expressly  modified  hereby,  all other terms and  conditions  of said
lease,  dated October 22, 1989 and  subsequent  amendment  stated in Addendum #2
dated  March 17,  1995,  shall  remain in full force and effect  throughout  the
extended term thereof.


LESSOR:
Sunlife Assurance Company of Canada

By: /s/ George M. Collins                  By: /s/ Thom V. Rudolph 
    ------------------------                   --------------------------

Title:  for PRESIDENT                      By:   for SECRETARY
      ----------------------                   --------------------------

Date:     3/25/97                          Date:   3/25/97
      ----------------------                     ------------------------


LESSEE:
Cholestech Corporation, a California Corporation

By:  /s/ Steven L. Barbato
    -------------------------

Title:  VP Manufacturing
      -----------------------

Date:    3/19/97
     ------------------------

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