<PAGE>
     As filed with the Securities and Exchange Commission on October 7, 1999

                                                     REGISTRATION NO. 333-
--------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                              -------------------
                                    FORM S-8

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                              -------------------

                        DUALSTAR TECHNOLOGIES CORPORATION
             (Exact name of registrant as specified in its charter)

                              -------------------

          DELAWARE                                            13-3776834
(State or other jurisdiction                               (I.R.S. Employer
of incorporation or organization)                         Identification No.)


          11-30 47TH AVENUE                                     11101
      LONG ISLAND CITY, NEW YORK                             (Postal Code)
(Address of principal executive offices)

                             1994 STOCK OPTION PLAN
                            (Full title of the plan)

                              -------------------

                                  GREGORY CUNEO
                 CHAIRMAN, PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                11-30 47TH AVENUE
                        LONG ISLAND CITY, NEW YORK 11101
                     (Name and address of agent for service)

                                 (718) 340-6655
          (Telephone number, including area code, of agent for service)

                              -------------------

The Commission is requested to send copies of all orders, notices and
communications to:

                            EILEEN P. MCCARTHY, ESQ.
                               GOULD & WILKIE LLP
                            ONE CHASE MANHATTAN PLAZA
                          NEW YORK, NEW YORK 10005-1401
                                 (212) 344-5680

                              -------------------
<TABLE>
<CAPTION>

                         CALCULATION OF REGISTRATION FEE
-----------------------------------------------------------------------------------------------
                                        Proposed maximum    Proposed maximum        Amount of
 Title of securities to   Amount to be   offering price        aggregate           registration
      be registered        registered      per unit(1)      offering price(1)           fee
-----------------------------------------------------------------------------------------------
<S>                        <C>                 <C>             <C>                  <C>
Common  Stock,  $.01  par
value                      1,300,000(2)        $5.75           $7,475,000           $2,078
-----------------------------------------------------------------------------------------------
</TABLE>

(1)  Estimated, in accordance with Rule 457(c) and (h) under the Securities Act
     of 1933, solely for the purpose of calculating the registration fee, based
     on the average of the high and low prices of the Common Stock of Registrant
     on October 4, 1999, as reported on the NASDAQ National Market.

(2)  Pursuant to Rule 416 under the Securities Act of 1933, there are also
     registered hereunder an indeterminate amount of such additional Common
     Shares as may become issuable under said Plan through the operation of
     applicable anti-dilution provisions.

<PAGE>
                                EXPLANATORY NOTE

     This Registration Statement, on Form S-8, is being filed by DualStar
Technologies Corporation (the "Company" or the "Registrant") with the Securities
and Exchange Commission (the "SEC") pursuant to General Instruction E to Form
S-8 for the purpose of registering under the Securities Act of 1933, as amended
(the "Act") 1,300,000 additional shares of Common Stock, par value $.01 per
share, of the Company ("Common Stock") for issuance pursuant to the Company's
1994 Stock Option Plan, as amended.

     The Company has heretofore registered under the Act a total of 2,200,000
shares of Common Stock for issuance under the Company's 1994 Stock Option Plan
by means of the currently effective Registration Statement on Form S-8
(Registration No. 33-97708) previously filed with the SEC (the "Prior
Registration Statement").

     The contents of the Prior Registration Statement is hereby incorporated by
reference into this Registration Statement.











<PAGE>

                                     PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.

     The following documents of the Registrant which have been filed with the
SEC pursuant to the Securities Exchange Act of 1934, as amended ("Exchange Act")
are incorporated by reference into this Registration Statement.

     (a)  Registrant's Annual Report on Form 10-K for the fiscal year ended
          June 30, 1999; and

     (b)  Description of the Common Stock set forth in Registration
          Statement on Form 8-A filed February 13, 1995.

     All documents filed by the Registrant with the SEC pursuant to Section
13(a), 13(c), 14 and 15(d) of the Exchange Act subsequent to the date hereof and
prior to the filing of a post-effective amendment which indicates that all
securities offered have been sold or which deregisters all securities then
remaining unsold shall be deemed to be incorporated by reference in this
Registration Statement and to be a part hereof from the date of filing of such
documents.

     Any statement contained herein or in a document incorporated or deemed to
be incorporated by reference herein shall be deemed to be modified or superseded
for purposes hereof to the extent that a statement contained herein or in any
other subsequently filed document which is also incorporated or deemed to be
incorporated by reference herein modifies or supersedes such statement. Any such
statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part of this Registration Statement.


ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     The Company's Restated Certificate of Incorporation ("Certificate of
Incorporation") provides that the Company shall, to the fullest extent permitted
by Section 145 of the General Corporation Law of Delaware, indemnify and advance
expenses to any and all persons whom it shall have power to indemnify from and
against any and all of the expenses, liabilities or other matters referred to in
or covered by said section, and the indemnification provided for shall not be
deemed exclusive of any other rights.

     Section 145 of the General Corporation Law of the State of Delaware allows
the Company to indemnify officers, directors, employees and agents against
judgements, fines and amounts paid in settlement in certain actions, including
reasonable costs and expenses, associated with civil and criminal suits related
to their services in these capacities. The indemnification applies to civil
cases arising from acts made in good faith, reasonably believing that they were
in or not opposed to the best interests of the Company. It may also apply to
criminal cases if the person had no
<PAGE>

reason to believe his conduct was unlawful. In some cases, the availability of
indemnification may be up to the discretion of the court in which the suit was
brought.

     The Certificate of Incorporation also provides that no director of the
Company shall be personally liable to the Corporation or its stockholders for
monetary damages for breach of fiduciary duty as a director, subject to certain
exceptions. This provision does not abrogate a director's fiduciary duty to the
Company and its shareholders, but eliminates personal liability for monetary
damages for breach of that duty. This provision does not, however, eliminate or
limit the liability of a director for failing to act in good faith, for engaging
in intentional misconduct or knowingly violating a law, for authorizing the
illegal payment of a dividend or repurchase of stock, for obtaining an improper
personal benefit, for breaching a director's duty of loyalty (which is generally
described as the duty not to engage in any transaction which involves a conflict
between the interest of the Company and those of the director) or for violations
of the federal securities laws.

     The Company also maintains directors and officers liability insurance for
the benefit of its officers and directors.


ITEM 8. EXHIBITS.


    Exhibit Number
   (Regulation S-K
 Item 601 Designation)                                   Exhibit

         (4)             -     Instruments defining the rights of security
                               holders:

                         -     DualStar Technologies Corporation 1994 Stock
                               Option Plan, as amended (incorporated by
                               reference to Registrant's Annual Report on Form
                               10-K for the fiscal year ended June 30, 1999).

         (5)             -     Opinion of Gould & Wilkie LLP

         (23) (a)        -     Consent of Grant Thornton LLP

         (23) (b)        -     Consent of Gould & Wilkie LLP (contained in their
                               opinion filed as Exhibit (5)).
<PAGE>

                                   SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in Long Island City, New York, on October 4, 1999.


                                     DUALSTAR TECHNOLOGIES CORPORATION


                                     By: /s/ Gregory Cuneo
                                        ------------------
                                             Gregory Cuneo
                                             Chairman, President and
                                             Chief Executive Officer


      Pursuant to the requirements of the Securities Act of 1933, this amendment
to this registration statement has been signed by the following persons in the
capacities and on the dates indicated.

<TABLE>
<CAPTION>
         Signature                          Title                                   Date
         ---------                          -----                                   ----

<S>                                   <C>                                    <C>
/s/ Gregory Cuneo                     Chairman, President and                October 4, 1999
------------------------------        Chief Executive Officer
Gregory Cuneo


/s/ Robert J. Birnbach                Executive Vice President,              October 4, 1999
------------------------------        Chief Financial Officer
Robert J. Birnbach                    [Principal Financial
                                      Officer] and Director


/s/ Joseph C. Chan                    Vice President and                     October 4, 1999
------------------------------        Chief Accounting
Joseph C. Chan                        Officer [Principal
                                      Accounting Officer]


/s/ Ronald Fregara                    Executive Vice President               October 4, 1999
------------------------------        and Director
Ronald Fregara



/s/ Michael J. Abatemarco             Director                               October 4, 1999
------------------------------
Michael J. Abatemarco


<PAGE>


/s/ Lloyd I. Miller, III              Director                               October 4, 1999
------------------------------
Lloyd I. Miller, III



/s/ Michael F. Whalen, Jr.            Director                               October 4, 1999
------------------------------
Michael F. Whalen, Jr.



/s/ Jared E. Abbruzzese               Director                               October 4, 1999
------------------------------
Jared E. Abbruzzese



/s/ Raymond L. Steele                 Director                               October 4, 1999
------------------------------
Raymond L. Steele



/s/ Stephen J. Yager                  Executive Vice President,              October 4, 1999
------------------------------        Secretary and Director
Stephen J. Yager

</TABLE>

<PAGE>

                                  EXHIBIT INDEX

     Following is the list of Exhibits, as required by General Instruction E to
Form S-8:

 Exhibit Number
(Regulation S-K
  Item 601
 Designation)                                      Exhibit

     (4)             -    Instruments defining the rights of security holders:

                     -    DualStar Technologies Corporation 1994 Stock Option
                          Plan, as amended (incorporated by reference to
                          Registrant's Annual Report on Form 10-K for the fiscal
                          year ended June 30, 1999).

     (5)             -    Opinion of Gould & Wilkie LLP

     (23) (a)        -    Consent of Grant Thornton LLP

     (23) (b)        -    Consent of Gould & Wilkie LLP (contained in their
                          opinion filed as Exhibit (5)).
[{"type": "S-8", "sequence": "1", "description": "REGISTRATION STATEMENT; BENEFIT PLAN", "secsgml_size_bytes": 13482}]
{"company-data": {"conformed-name": "DUALSTAR TECHNOLOGIES CORP", "cik": "0000929546", "assigned-sic": "1700", "irs-number": "133776834", "state-of-incorporation": "DE", "fiscal-year-end": "0630"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-88659", "film-number": "99725503"}, "business-address": {"street1": "11-30 47TH AVE", "city": "LONG ISLAND CITY", "state": "NY", "zip": "11101", "phone": "7183406655"}, "mail-address": {"street1": "11-30 47TH AVE", "city": "LONG ISLAND CITY", "state": "NY", "zip": "11101"}}
As filed with the Securities and Exchange Commission on October 7, 1999

                                                     REGISTRATION NO. 333-
--------------------------------------------------------------------------------
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                              -------------------
                                    FORM S-8

             REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                              -------------------

                        DUALSTAR TECHNOLOGIES CORPORATION
             (Exact name of registrant as specified in its charter)

                              -------------------

          DELAWARE                                            13-3776834
(State or other jurisdiction                               (I.R.S. Employer
of incorporation or organization)                         Identification No.)

          11-30 47TH AVENUE                                     11101
      LONG ISLAND CITY, NEW YORK                             (Postal Code)
(Address of principal executive offices)

                             1994 STOCK OPTION PLAN
                            (Full title of the plan)

                              -------------------

                                  GREGORY CUNEO
                 CHAIRMAN, PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                11-30 47TH AVENUE
                        LONG ISLAND CITY, NEW YORK 11101
                     (Name and address of agent for service)

                                 (718) 340-6655
          (Telephone number, including area code, of agent for service)

                              -------------------

The Commission is requested to send copies of all orders, notices and
communications to:

                            EILEEN P. MCCARTHY, ESQ.
                               GOULD & WILKIE LLP
                            ONE CHASE MANHATTAN PLAZA
                          NEW YORK, NEW YORK 10005-1401
                                 (212) 344-5680

                              -------------------
CALCULATION OF REGISTRATION FEE
-----------------------------------------------------------------------------------------------
                                        Proposed maximum    Proposed maximum        Amount of
 Title of securities to   Amount to be   offering price        aggregate           registration
      be registered        registered      per unit(1)      offering price(1)           fee
-----------------------------------------------------------------------------------------------
Common  Stock,  $.01  par
value                      1,300,000(2)        $5.75           $7,475,000           $2,078
-----------------------------------------------------------------------------------------------
(1)  Estimated, in accordance with Rule 457(c) and (h) under the Securities Act
     of 1933, solely for the purpose of calculating the registration fee, based
     on the average of the high and low prices of the Common Stock of Registrant
     on October 4, 1999, as reported on the NASDAQ National Market.

(2)  Pursuant to Rule 416 under the Securities Act of 1933, there are also
     registered hereunder an indeterminate amount of such additional Common
     Shares as may become issuable under said Plan through the operation of
     applicable anti-dilution provisions.
EXPLANATORY NOTE

     This Registration Statement, on Form S-8, is being filed by DualStar
Technologies Corporation (the "Company" or the "Registrant") with the Securities
and Exchange Commission (the "SEC") pursuant to General Instruction E to Form
S-8 for the purpose of registering under the Securities Act of 1933, as amended
(the "Act") 1,300,000 additional shares of Common Stock, par value $.01 per
share, of the Company ("Common Stock") for issuance pursuant to the Company's
1994 Stock Option Plan, as amended.

     The Company has heretofore registered under the Act a total of 2,200,000
shares of Common Stock for issuance under the Company's 1994 Stock Option Plan
by means of the currently effective Registration Statement on Form S-8
(Registration No. 33-97708) previously filed with the SEC (the "Prior
Registration Statement").

     The contents of the Prior Registration Statement is hereby incorporated by
reference into this Registration Statement.
PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE.

     The following documents of the Registrant which have been filed with the
SEC pursuant to the Securities Exchange Act of 1934, as amended ("Exchange Act")
are incorporated by reference into this Registration Statement.

     (a)  Registrant's Annual Report on Form 10-K for the fiscal year ended
          June 30, 1999; and

     (b)  Description of the Common Stock set forth in Registration
          Statement on Form 8-A filed February 13, 1995.

     All documents filed by the Registrant with the SEC pursuant to Section
13(a), 13(c), 14 and 15(d) of the Exchange Act subsequent to the date hereof and
prior to the filing of a post-effective amendment which indicates that all
securities offered have been sold or which deregisters all securities then
remaining unsold shall be deemed to be incorporated by reference in this
Registration Statement and to be a part hereof from the date of filing of such
documents.

     Any statement contained herein or in a document incorporated or deemed to
be incorporated by reference herein shall be deemed to be modified or superseded
for purposes hereof to the extent that a statement contained herein or in any
other subsequently filed document which is also incorporated or deemed to be
incorporated by reference herein modifies or supersedes such statement. Any such
statement so modified or superseded shall not be deemed, except as so modified
or superseded, to constitute a part of this Registration Statement.

ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     The Company's Restated Certificate of Incorporation ("Certificate of
Incorporation") provides that the Company shall, to the fullest extent permitted
by Section 145 of the General Corporation Law of Delaware, indemnify and advance
expenses to any and all persons whom it shall have power to indemnify from and
against any and all of the expenses, liabilities or other matters referred to in
or covered by said section, and the indemnification provided for shall not be
deemed exclusive of any other rights.

     Section 145 of the General Corporation Law of the State of Delaware allows
the Company to indemnify officers, directors, employees and agents against
judgements, fines and amounts paid in settlement in certain actions, including
reasonable costs and expenses, associated with civil and criminal suits related
to their services in these capacities. The indemnification applies to civil
cases arising from acts made in good faith, reasonably believing that they were
in or not opposed to the best interests of the Company. It may also apply to
criminal cases if the person had no
reason to believe his conduct was unlawful. In some cases, the availability of
indemnification may be up to the discretion of the court in which the suit was
brought.

     The Certificate of Incorporation also provides that no director of the
Company shall be personally liable to the Corporation or its stockholders for
monetary damages for breach of fiduciary duty as a director, subject to certain
exceptions. This provision does not abrogate a director's fiduciary duty to the
Company and its shareholders, but eliminates personal liability for monetary
damages for breach of that duty. This provision does not, however, eliminate or
limit the liability of a director for failing to act in good faith, for engaging
in intentional misconduct or knowingly violating a law, for authorizing the
illegal payment of a dividend or repurchase of stock, for obtaining an improper
personal benefit, for breaching a director's duty of loyalty (which is generally
described as the duty not to engage in any transaction which involves a conflict
between the interest of the Company and those of the director) or for violations
of the federal securities laws.

     The Company also maintains directors and officers liability insurance for
the benefit of its officers and directors.

ITEM 8. EXHIBITS.

    Exhibit Number
   (Regulation S-K
 Item 601 Designation)                                   Exhibit

         (4)             -     Instruments defining the rights of security
                               holders:

                         -     DualStar Technologies Corporation 1994 Stock
                               Option Plan, as amended (incorporated by
                               reference to Registrant's Annual Report on Form
                               10-K for the fiscal year ended June 30, 1999).

         (5)             -     Opinion of Gould & Wilkie LLP

         (23) (a)        -     Consent of Grant Thornton LLP

         (23) (b)        -     Consent of Gould & Wilkie LLP (contained in their
                               opinion filed as Exhibit (5)).
SIGNATURES

     Pursuant to the requirements of the Securities Act of 1933, the registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in Long Island City, New York, on October 4, 1999.

                                     DUALSTAR TECHNOLOGIES CORPORATION

                                     By: /s/ Gregory Cuneo
                                        ------------------
                                             Gregory Cuneo
                                             Chairman, President and
                                             Chief Executive Officer

      Pursuant to the requirements of the Securities Act of 1933, this amendment
to this registration statement has been signed by the following persons in the
capacities and on the dates indicated.
Signature                          Title                                   Date
         ---------                          -----                                   ----
/s/ Gregory Cuneo                     Chairman, President and                October 4, 1999
------------------------------        Chief Executive Officer
Gregory Cuneo

/s/ Robert J. Birnbach                Executive Vice President,              October 4, 1999
------------------------------        Chief Financial Officer
Robert J. Birnbach                    [Principal Financial
                                      Officer] and Director

/s/ Joseph C. Chan                    Vice President and                     October 4, 1999
------------------------------        Chief Accounting
Joseph C. Chan                        Officer [Principal
                                      Accounting Officer]

/s/ Ronald Fregara                    Executive Vice President               October 4, 1999
------------------------------        and Director
Ronald Fregara

/s/ Michael J. Abatemarco             Director                               October 4, 1999
------------------------------
Michael J. Abatemarco
/s/ Lloyd I. Miller, III              Director                               October 4, 1999
------------------------------
Lloyd I. Miller, III

/s/ Michael F. Whalen, Jr.            Director                               October 4, 1999
------------------------------
Michael F. Whalen, Jr.

/s/ Jared E. Abbruzzese               Director                               October 4, 1999
------------------------------
Jared E. Abbruzzese

/s/ Raymond L. Steele                 Director                               October 4, 1999
------------------------------
Raymond L. Steele

/s/ Stephen J. Yager                  Executive Vice President,              October 4, 1999
------------------------------        Secretary and Director
Stephen J. Yager
EXHIBIT INDEX

     Following is the list of Exhibits, as required by General Instruction E to
Form S-8:

 Exhibit Number
(Regulation S-K
  Item 601
 Designation)                                      Exhibit

     (4)             -    Instruments defining the rights of security holders:

                     -    DualStar Technologies Corporation 1994 Stock Option
                          Plan, as amended (incorporated by reference to
                          Registrant's Annual Report on Form 10-K for the fiscal
                          year ended June 30, 1999).

     (5)             -    Opinion of Gould & Wilkie LLP

     (23) (a)        -    Consent of Grant Thornton LLP

     (23) (b)        -    Consent of Gould & Wilkie LLP (contained in their
                          opinion filed as Exhibit (5)).