-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 ZQZASS2UBDx3fmzlcY/TlQ==

<SEC-DOCUMENT>0001140361-06-002299.txt : 20060214
<SEC-HEADER>0001140361-06-002299.hdr.sgml : 20060214
<ACCEPTANCE-DATETIME>20060214121813
ACCESSION NUMBER:		0001140361-06-002299
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20051231
FILED AS OF DATE:		20060214
DATE AS OF CHANGE:		20060214

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SENTRY TECHNOLOGY CORP
		CENTRAL INDEX KEY:			0001030708
		STANDARD INDUSTRIAL CLASSIFICATION:	COMMUNICATIONS EQUIPMENT, NEC [3669]
		IRS NUMBER:				113349733
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		350 WIRELESS BLVD
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11788
		BUSINESS PHONE:		5142322100

	MAIL ADDRESS:	
		STREET 1:		350 WIRELESS BLVD
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11788

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Brookfield Technology Fund
		CENTRAL INDEX KEY:			0001289985

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-12727
		FILM NUMBER:		06609972

	BUSINESS ADDRESS:	
		STREET 1:		BCE PLACE; 181 BAY STREET
		STREET 2:		SUITE 300
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 2T3
		BUSINESS PHONE:		416-510-5773

	MAIL ADDRESS:	
		STREET 1:		BCE PLACE; 181 BAY STREET
		STREET 2:		SUITE 300
		CITY:			TORONTO
		STATE:			A6
		ZIP:			M5J 2T3

	FORMER NAME:	
		FORMER CONFORMED NAME:	Brascan Technology Fund
		DATE OF NAME CHANGE:	20040512
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 5
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>5</documentType>

    <periodOfReport>2005-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0001030708</issuerCik>
        <issuerName>SENTRY TECHNOLOGY CORP</issuerName>
        <issuerTradingSymbol>SKVY</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001289985</rptOwnerCik>
            <rptOwnerName>Brookfield Technology Fund</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>BCE PLACE; 181 BAY STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>TORONTO</rptOwnerCity>
            <rptOwnerState>A6</rptOwnerState>
            <rptOwnerZipCode>M5J 2T3</rptOwnerZipCode>
            <rptOwnerStateDescription>ONTARIO, CANADA</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Common stock options</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.15</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-03-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>5</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>50000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.15</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2005-03-28</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-03-28</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>common stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Stephen A. Adams</signatureName>
        <signatureDate>2006-02-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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