U. S. SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549
                                  FORM 10 - QSB

(Mark One)

(X) Quarterly   report   pursuant  to  section  13 or 15(d)  of  the  Securities
    Exchange Act of 1934.

           For the quarterly period ended September 30, 2000.

                                       or

( ) Transition report pursuant to section 13 or 15(d) of the Securities Exchange
    Act of 1934.

           For the Transition period from ______  to  _____


                          Commission file number 0-7441

                           SIERRA MONITOR CORPORATION

        (Exact name of small business issuer as specified in its charter)


          California                                            95-2481914
(State or other jurisdiction of                                 (I.R.S. Employer
 incorporation or organization)                                 Identification
                                                                Number)

                                1991 Tarob Court
                           Milpitas, California 95035

              (address and zip code of principal executive offices)


                                 (408) 262-6611
              (Registrant's telephone number, including area code)

         Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15 (d) of the  Securities and Exchange Act
of 1934  during the  preceding  12 months (or for such  shorter  period that the
registrant was required to file such reports),  and (2) has been subject to such
filing requirements for the past 90 days.

      Yes __x__   No _____

The number of shares of the issuer's common stock  outstanding,  as of September
30, 2000 was: 10,967,588.

Transitional Small Business Disclosure Format: Yes____  No __ X ___


                                                                     Page 1 of 9

<PAGE>



                          PART I: FINANCIAL INFORMATION

ITEM 1.  FINANCIAL STATEMENTS
<TABLE>
                           SIERRA MONITOR CORPORATION

                            Condensed Balance Sheets

                                   (Unaudited)
<CAPTION>
                                                                  September 30,  December 31,
                                Assets                                2000          1999
                                                                  -----------    -----------
<S>                                                               <C>            <C>
Current assets
        Cash and cash equivalents                                 $   861,908    $   606,939
        Trade receivables, less allowance for doubtful accounts     1,486,936        801,593
           of $141,547 in 2000 and $138,752 in 1999
        Notes receivable                                               20,634         27,084
        Inventories                                                 1,313,551      1,166,648
        Prepaid expenses                                              121,361        103,849
        Deferred income taxes                                         212,311        212,311
                                                                  -----------    -----------
                            Total current assets                    4,016,701      2,918,424
Property and equipment, net                                           250,169        198,657
Deferred income taxes                                                  97,851         97,850
Other assets                                                          358,084        418,752
                                                                  -----------    -----------
                                                                  $ 4,722,805    $ 3,633,683
                                                                  ===========    ===========

                   Liabilities and Shareholders' Equity

Current liabilities

        Accounts payable                                          $   552,829    $   411,540
        Accrued expenses                                              408,905        273,733
        Other current liabilities                                      74,955         43,812
        Income taxes payable                                          258,647           --
                                                                  -----------    -----------
                            Total current liabilities             $ 1,295,335    $   729,085
                                                                  -----------    -----------
Shareholders' equity

        Common stock: 20,000,000 shares authorized;
            10,467,588 shares issued and outstanding                3,159,944      3,159,944
        Retained earnings (accumulated deficit)                       297,935       (214,440)
        Notes receivable from shareholders                            (30,408)       (40,906)
                                                                  -----------    -----------
                            Total shareholders' equity              3,427,470      2,904,598
                                                                  -----------    -----------
                                                                  $ 4,722,805    $ 3,633,683
                                                                  ===========    ===========

<FN>
See the accompanying notes to the condensed financial statements.
</FN>
</TABLE>


                                                                     Page 2 of 9

<PAGE>

<TABLE>
                                 SIERRA MONITOR CORPORATION

                              Condensed Statements of Operations

                                        (Unaudited)
<CAPTION>

                                                     Three months ended            Nine months ended
                                                        September 30,                September 30,
                                                     2000           1999           2000           1999
                                                 ------------   ------------   ------------   ------------
<S>                                                 <C>         <C>            <C>            <C>
Net sales                                           2,618,045   $  1,814,432   $  7,140,554   $  4,985,171

Cost of goods sold                                    993,943        718,637      2,677,277      1,941,429
                                                 ------------   ------------   ------------   ------------

        Gross profit                                1,624,102      1,095,795      4,463,277      3,043,742
                                                 ------------   ------------   ------------   ------------

Operating expenses

    Research and development                          264,305        188,508        768,652        591,788
    Selling and marketing                             638,642        565,888      1,845,763      1,704,989
    General and administrative                        360,091        321,205      1,072,888        941,892
                                                 ------------   ------------   ------------   ------------
                                                    1,263,038      1,075,601      3,687,303      3,238,669
                                                 ------------   ------------   ------------   ------------
        Income (loss) from operations                 361,064         20,194        775,974       (194,927)

Interest income                                         2,249          2,641          5,772         15,289
                                                 ------------   ------------   ------------   ------------

        Income (loss) before income taxes             363,313         22,835        781,746       (179,638)

Income tax expense (benefit)                          127,160           --          269,371        (43,989)
                                                 ------------   ------------   ------------   ------------

        Net income (loss)                             236,153   $     22,835   $    512,375   $   (135,649)
                                                 ============   ============   ============   ============

Net income (loss) per share - basic                      0.02   $       0.00   $       0.05   $      (0.01)
                                                 ============   ============   ============   ============
Net income (loss) per share - diluted                    0.02   $       0.00   $       0.04   $      (0.01)
                                                 ============   ============   ============   ============
Weighted average number of shares
used in per share computations
                                        Basic:     10,967,588     10,967,588     10,967,588     10,967,588
                                                 ============   ============   ============   ============
                                      Diluted:     11,612,435     11,025,475     11,590,115     10,967,588
                                                 ============   ============   ============   ============

<FN>
See the accompanying notes to the condensed financial statements.
</FN>
</TABLE>
                                                                     Page 3 of 9

<PAGE>

<TABLE>

                           SIERRA MONITOR CORPORATION

                       Condensed Statements of Cash Flows

                                   (Unaudited)
<CAPTION>

                                                        Three months ended         Nine months ended
                                                           September 30,             September 30,
                                                         2000         1999         2000         1999
                                                       ---------    ---------    ---------    ---------
<S>                                                    <C>          <C>          <C>          <C>
Cash flows from operating activities:
  Net income (loss)                                    $ 236,153    $  22,835    $ 512,375    $(135,649)
  Adjustments to reconcile net income (loss) to net
    cash provided by (used in) operating activities:
        Depreciation & amortization                       64,327       63,380      180,079      189,269
        Allowance for doubtful accounts                    2,250        3,210        2,795        7,748
        Deferred income taxes                               --           --             (1)     (25,317)
        Changes in operating assets and liabilities:
          Trade receivables and notes receivables          8,058     (353,842)    (681,688)    (207,957)
          Inventories                                     99,000      (99,509)    (146,903)    (163,274)
          Prepaid expenses                               (12,819)       3,779      (17,512)     (28,731)
          Accounts payable                                36,020      277,191      141,289      256,327
          Accrued expenses                                (4,697)     (14,031)     135,172       20,388
          Other current liabilities                       15,522        4,748       31,143      (25,756)
          Income taxes payable                           124,542         --        258,647     (105,052)
                                                       ---------    ---------    ---------    ---------
              Net cash provided by (used in)
                operating activities                     568,356      (92,239)     415,396     (218,004)
                                                       ---------    ---------    ---------    ---------
Cash flows from investing activities:

  Capital expenditures                                  (109,322)     (15,519)    (170,925)     (80,252)
  Short term investments                                    --           --           --        245,522
  Acquisition of business assets                            --           --           --       (171,282)
  Other assets                                              --           (500)        --           (789)
                                                       ---------    ---------    ---------    ---------
              Net cash used in investing activities     (109,322)     (16,019)    (170,925)      (7,367)
                                                       ---------    ---------    ---------    ---------
Cash flows from financing activities:
   Proceeds from repayment of notes receivable
       from shareholders                                   3,345        3,519       10,498        9,905
                                                       ---------    ---------    ---------    ---------
              Net cash provided by financing
              activities                                   3,345        3,519       10,498        9,905
                                                       ---------    ---------    ---------    ---------
Net increase (decrease) in
  cash and cash equivalents                              462,379     (104,739)     254,969     (215,466)
Cash and cash equivalents at beginning of period         399,529      282,940      606,939      393,667
                                                       ---------    ---------    ---------    ---------
Cash and cash equivalents at end of period             $ 861,908    $ 178,201    $ 861,908    $ 178,201
                                                       =========    =========    =========    =========
<FN>
See the accompanying notes to the condensed financial statements.
</FN>
</TABLE>
                                                                     Page 4 of 9

<PAGE>


                           SIERRA MONITOR CORPORATION

                   Notes to the Condensed Financial Statements

                               September 30, 2000

Basis of Presentation

The unaudited condensed  financial  statements have been prepared by the Company
pursuant to the rules and regulations of the Securities and Exchange Commission.
Certain  information  and footnote  disclosures  normally  included in financial
statements prepared in accordance with generally accepted accounting  principles
have been omitted pursuant to such SEC rules and regulations;  nevertheless, the
Company  believes  that the  disclosures  are  adequate to make the  information
presented not misleading. These financial statements and the notes hereto should
be read in conjunction with the financial  statements and notes thereto included
in the Company's  Annual  Report on Form 10-KSB for the year ended  December 31,
1999  which was  filed  March 30,  2000.  In the  opinion  of the  Company,  all
adjustments,  including normal recurring adjustments necessary to present fairly
the financial  position of Sierra  Monitor  Corporation as of September 30, 2000
and the results of its  operations  and cash flows for the  quarter  then ended,
have been  included.  The results of operations  for the interim  period are not
necessarily indicative of the results for the full year.

Recent Accounting Pronouncements

In March 2000, the Financial  Accounting Standards Board ("FSAB") issued FIN 44,
an  interpretation  of  Accounting   Principles  Board  (APB)  Opinion  No.  25,
Accounting for Stock Issued to Employees.  FIN 44 addresses  inconsistencies  in
accounting for stock-based  compensation  that arise from  implementation of APB
Opinion  No.  25.  The  Company  adopted  FIN 44 on July 1,  2000.  The  Company
determined that FIN 44 has had no material  effect on its financial  position or
results of operations.

In June 1998, the FASB issued Statement of Financial  Accounting Standard (SFAS)
No. 133, Accounting for Derivative  Instruments and Hedging Activities (SFAS No.
133). SFAS No. 133 establishes accounting and reporting standards for derivative
financial  instruments,  including certain  derivative  instruments  embedded in
other  contracts  (collectively  referred  to as  derivatives)  and for  hedging
activities.  It requires  that an entity  recognize  all  derivatives  as either
assets or liabilities  in the statement of financial  position and measure those
instruments  at  fair  value.  For a  derivative  not  designated  as a  hedging
instrument,  changes  in the fair  value of the  derivative  are  recognized  in
earnings  in the period of  change.  The  Company  does not  currently  hold any
derivative  financial  instruments in the ordinary  course of its operations and
does not engage in hedging  activities.  As a result, the Company has determined
that the  adoption  of SFAS No.  133 will  not  have a  material  effect  on the
Company's consolidated financial position or results of operations.

In December  1999, the  Securities  and Exchange  Commission  (SEC) issued Staff
Accounting  Bulletin  No.  101  (SAB  101),  Revenue  Recognition  in  Financial
Statements,  as amended by SAB 101A and SAB 101B, which provides guidance on the
recognition,  presentation,  and  disclosure of revenue in financial  statements
filed with the SEC.  SAB 101  outlines  the basic  criteria  that must be met to
recognize  revenue  and  provides  guidance  for  disclosure  related to revenue
recognition  policies.  The Company  will adopt SAB 101 no later than the fourth
quarter of fiscal 2000. The Company does not expect that the adoption of SAB 101
will  have  a  material  impact  on  its  financial  statements  or  results  of
operations.


                                                                     Page 5 of 9

<PAGE>

Summary of Business

      Sierra Monitor Corporation ("SMC" or the "Company") was founded in 1978 to
design and develop hazardous gas monitoring  devices for protection of personnel
and facilities in industrial work places. In addition to gas monitoring systems,
the  Company  manufactures  microprocessor  based  systems  used to monitor  and
control environmental conditions in small, remote,  structures used for cellular
and hard wire telephone equipment. The Company also manufactures a product known
as a Communications Bridge. The Communications Bridge enables electronic control
systems to communicate with each other,  generally over Ethernet,  even when the
systems use non-compatible data storage and transfer protocols.

      Products  manufactured  by the Company are sold  primarily  to oil and gas
drilling and refining companies,  chemical plants, waste-water treatment plants,
telecommunications  companies,  building  control systems  integrators,  parking
garages and landfill rehabilitation projects.

Inventories

A summary of inventories follows:

                                  September 30,                 December 31,
                                      2000                          1999
                          -------------------------      -----------------------
Raw Materials             $          490,908             $          403,338
Work-in-process                      282,409                        520,220
Finished goods                       540,234                        243,090
                          -------------------------      -----------------------
                          $        1,313,551             $        1,166,648
                          =========================      =======================

Net Income (Loss) per share
<TABLE>
Basic Earnings Per Share (EPS) is computed using the weighted  average number of
common shares outstanding  during the period.  Diluted EPS is computed using the
weighted-average   number  of  common  and  dilutive  common  equivalent  shares
outstanding  during the period.  Dilutive  common  equivalent  shares consist of
common stock  issuable upon  exercise of stock options using the treasury  stock
method.  No adjustments  to earnings  (loss) were made for purposes of per share
calculations.  The Company  reported a net loss for the nine month  period ended
September  30, 1999.  As a result  106,039  shares have been  excluded  from the
calculation of diluted loss per share for the nine month period ended  September
30, 1999, as such shares would be antidilutive. For the three month period ended
September  30, 1999  options to  purchase  300,000  shares of common  stock were
outstanding  but not  included  in the  computation  of diluted  EPS because the
option  exercise  price was  greater  than the  average  market  price of common
shares.  The following is a reconciliation of the shares used in the computation
of basic and diluted EPS for the three and nine month periods  ending  September
30, 2000 and 1999, respectively:
<CAPTION>
                                              3 months ended    9 months ended   3 months ended    9 months ended
                                                9/30/2000         9/30/2000         9/30/1999        9/30/1999
<S>                                               <C>              <C>              <C>              <C>

Basic EPS - weighted-average number of
    common shares outstanding                     10,967,588       10,967,588       10,967,588       10,967,588

Dilutive stock options                               644,847          622,527           57,887                -
                                             ----------------- ----------------- ---------------- -----------------

Diluted EPS - dilutive potential common           11,612,435       11,590,115       11,025,475       10,967,588
       shares
</TABLE>

                                                                     Page 6 of 9

<PAGE>

This report contains  forward-looking  statements  within the meaning of Section
27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act
of 1934.  Actual  results could differ  materially  from those  projected in the
forward-looking  statements  as a result of the risk  factors  set forth in this
report,  the  Company's  Annual  Report on Form  10-KSB  and other  reports  and
documents that the Company files with the Securities and Exchange Commission.

ITEM 2. MANAGEMENT'S  DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS

Results of Operations

      For the three months ended September 30, 2000, Sierra Monitor  Corporation
("Sierra Monitor" or the "Company") reported net sales of $2,618,045 compared to
$1,814,432  for the three months ended  September 30, 1999.  For the  nine-month
period  ended  September  30,  2000,  net sales were  $7,140,554  compared  with
$4,985,171  in the prior  year  nine-month  period.  The  results  for the third
quarter of 2000 represent a 44% increase from the same period in the prior year.
The results for the first nine  months of fiscal 2000  represent a 43%  increase
from the same period the prior year.

      The primary  reason for the  increase in sales is an increase in shipments
of  environment  controllers,  which are used in  telephone  and  cable  company
applications.   Major  telephone  and  cable  companies  continue  expansion  of
infrastructure  to meet rapidly  growing demand for Internet  related  broadband
services.  Broadband  expansion  requires that small  buildings and  underground
vaults  must be  located  within  approximately  two  miles  of each  home to be
serviced.  For each small structure  Sierra Monitor has an opportunity to supply
an  environment  controller.  The  Company is  presently  the sole  supplier  of
environment  controllers for a bandwidth  expansion project by a major telephone
company.

      In  addition   to  products   for  the   telephone   industry,   sales  of
Communications  Bridges increased in both the three and nine month periods ended
September 30, 2000 compared to the same periods of 1999.  Sales of gas detection
systems also increased in the same three month and nine month periods.

      Gross profit of $1,624,102 for the three-month  period ended September 30,
2000 was 62% of sales compared to $1,095,795 or 60% of sales, in the same period
in the previous year. The gross profit for the nine-month period ended September
30, 2000 was $4,463,277 or 62% of sales, compared to $3,043,742 or 61% of sales,
in the same period in the previous  year.  The gross  margin,  for the three and
nine month periods in both 2000 and 1999 are consistent with historical levels.

       Expenses  for  research  and  development,   which  include  new  product
development and engineering to sustain existing  products,  were $264,305 or 10%
of sales,  for the  three-month  period  ending  September  30, 2000 compared to
$188,508, also 10% of sales, in the comparable period in 1999. In the nine-month
periods ending  September 30, 2000 and 1999,  research and development  expenses
were $768,652 or 11% of sales, and $591,788, or 12% of sales, respectively.  The
Company has maintained a high level of investment in  engineering  activities in
support of the communications  bridge including  expansion of software libraries
and  development  of new hardware  packages  which have not yet been released to
market.  During the remainder of fiscal year 2000,  several new package versions
of the  communications  bridge  will be released  for sale in specific  industry
applications.  Engineering  expenses also include  various,  customer-requested,
software  modifications  for  environment  controllers  and minor changes to gas
detection products.


                                                                     Page 7 of 9

<PAGE>

      Selling and marketing  expenses for the three-month period ended September
30, 2000 were $638,642 or 24% of sales,  compared to $565,888,  or 31% of sales,
in the comparable  period in the prior year.  For the nine-month  periods ending
September 30, 2000 and 1999,  selling and marketing  expenses were $1,845,763 or
26% of sales,  and  $1,704,989,  or 34% of sales,  respectively.  Selling  costs
include commissions paid to independent sales representatives. Commissions, as a
percentage  of  sales,  vary  periodically   based  on  product  mix,  level  of
discounting  and channels of  distribution.  In the three and nine month periods
ending September 30, 2000,  total  commission  expense remained at approximately
the  same  level  as the  prior  year,  but  result  in  approximately  2% lower
percentage  of sales due to the higher  volume of business  in 2000.  There have
been no other  significant  changes in selling expenses and the lower percentage
of sales in 2000 is,  again,  reflective  of the leverage of higher sales levels
without a similar increase in commission expense.

      General and administrative expenses increased to $360,091 or 14% of sales,
for the  three-month  period ended  September 30, 2000 from $321,205,  or 18% of
sales,  in  the  three-month  period  ended  September  30,  1999.  General  and
administrative  expenses  increased  to  $1,072,888  or 15% of  sales,  for  the
nine-month  period ended  September 30, 2000 from $941,892,  or 19% of sales, in
the nine-month period ended September 30, 1999.  Increases in salary and benefit
expenses contributed to the higher general and administrative expenses.

      Net income,  after interest and provision for income taxes,  for the three
months ended September 30, 2000 was $236,153,  or 9% of net sales, compared with
$22,835,  or 1% of net sales,  in the three months ended September 30, 1999. Net
income for the nine-month  period ended September 30, 2000 was $512,375 or 7% of
net sales,  compared with net loss of $135,649,  or 3% of net sales, in the same
period in the prior year.

Liquidity and Capital Resources

      During the nine- month period ended  September  30,  2000,  the  Company's
working  capital  increased by $532,027 from December 31, 1999. At September 30,
2000, cash and cash  equivalents and short-term  investments,  totaled  $861,908
compared to $606,939 at December 31, 1999.  Net trade accounts  receivable  have
increased  $685,343  since the  beginning  of the  year,  and  inventories  have
increased $146,903.

      The Company  currently has no current or long term balance due on its line
of credit  with its  commercial  bank.  The  Company  believes  that its current
capital  resources,  which include  cash,  accounts  receivable  and the line of
credit are sufficient to support existing and anticipated levels of business for
at least the next twelve months.

Field Server Technologies

      During the fourth  quarter of 2000 the Company  will  release  several new
communications   products  which  utilize  its  Communications  Bridge  software
programs.  The products,  trademarked  "FieldServer"  are smaller and lower cost
than  the  Communications   Bridge  and  are  targeted  toward  embedded  system
applications and original equipment manufacturer markets.

      The markets and channels of distribution for the  communications  products
are now substantially different than those for gas detection products. To insure
that sales efforts are focused on those markets a new division of Sierra Monitor
Corporation  named FieldServer  Technologies  will be created.  The new division
will be responsible for ongoing design of new products and for the marketing and
sales of communications products.  FieldServer Technologies' address will be the
same as Sierra Monitor Corporation but the division will function  independently
and will operate its own web site; www.FieldServer.com.


                                                                     Page 8 of 9

<PAGE>

                           PART II: OTHER INFORMATION

Item 1.    Legal Proceedings - N/A

Item 2.    Changes in Securities - N/A

Item 3.    Defaults Upon Senior Securities - N/A

Item 4.    Submission of Matters to a Vote of Security Holders - N/A

Item 5.    Other Information - N/A

Item 6.    Exhibits and Reports on Form 8-K

           a.     Exhibits.

                           10.6     Standard  Industrial  Lease  dated  July 31,
                                    2000, by and between GEOMAX and Registrant.

                           27.0     Financial Data Schedule

           b.     Reports on Form 8-K - None


                                    SIGNATURE

Pursuant  to the  requirements  of the  Securities  Exchange  Act of  1934,  the
registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned thereunto duly authorized.

                                                  SIERRA MONITOR CORPORATION

                                                  Registrant

Date:      November 12, 2000                  By:    /S/ GORDON R. ARNOLD

                                                  ------------------------------
                                                  Gordon R. Arnold
                                                  President
                                                  Chief Financial Officer


                                                                     Page 9 of 9