-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 QvQhsUHjKTWH07373Qj0v8iP4kZPOvv4ppYvKtF5Q3HNn6BrybqvJ7IAqV7nUHGx
 evDQzZm90r28Sx9dQi0BuA==

<SEC-DOCUMENT>0000815910-04-000002.txt : 20040107
<SEC-HEADER>0000815910-04-000002.hdr.sgml : 20040107
<ACCEPTANCE-DATETIME>20040107170934
ACCESSION NUMBER:		0000815910-04-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20040106
FILED AS OF DATE:		20040107

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			METROLOGIC INSTRUMENTS INC
		CENTRAL INDEX KEY:			0000815910
		STANDARD INDUSTRIAL CLASSIFICATION:	COMPUTER PERIPHERAL EQUIPMENT, NEC [3577]
		IRS NUMBER:				221866172
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		COLES ROAD AT RTE 42
		CITY:			BLACKWOOD
		STATE:			NJ
		ZIP:			08012
		BUSINESS PHONE:		609-228-8100

	MAIL ADDRESS:	
		STREET 1:		COLES ROAD ROUTE 42
		CITY:			BLACKWOOD
		STATE:			NJ
		ZIP:			08012

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MATHIAS JOHN H
		CENTRAL INDEX KEY:			0001013893

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24712
		FILM NUMBER:		04513719

	BUSINESS ADDRESS:	
		STREET 1:		90 COLES ROAD
		CITY:			BLACKWOOD
		STATE:			NJ
		ZIP:			08012
		BUSINESS PHONE:		8562288100

	MAIL ADDRESS:	
		STREET 1:		193 SMOKETOWN ROAD
		CITY:			LEWISBURG
		STATE:			PA
		ZIP:			17837
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>jm10b51j_ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<!-- - EDGAR Ease Plus 1.0                                   07/25/03  TT    -->
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType>
   <periodOfReport>2004-01-06</periodOfReport>
   <notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000815910</issuerCik>
        <issuerName>METROLOGIC INSTRUMENTS INC</issuerName>
        <issuerTradingSymbol>MTLG</issuerTradingSymbol>
   </issuer>
   <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001013893</rptOwnerCik>
            <rptOwnerName>MATHIAS JOHN H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>90 COLES ROAD</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BLACKWOOD</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08012</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
         <isDirector>1</isDirector>
         <isOfficer>0</isOfficer>
         <isTenPercentOwner>0</isTenPercentOwner>
         <isOther>0</isOther>
      </reportingOwnerRelationship>
   </reportingOwner>
 <nonDerivativeTable>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Common Stock</value>
      </securityTitle>
      <transactionDate>
         <value>2004-01-06</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>S</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>2500</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>29.8351</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>D</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>1500</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
   <nonDerivativeTransaction>
      <securityTitle>
         <value>Common Stock</value>
      </securityTitle>
      <transactionDate>
         <value>2004-01-06</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>M</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>2500</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>3.44</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>A</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>4000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
            <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </nonDerivativeTransaction>
 </nonDerivativeTable>
 <derivativeTable>
   <derivativeTransaction>
      <securityTitle>
         <value>Incentive Stock Options</value>
      </securityTitle>
      <conversionOrExercisePrice>
         <value>3.44</value>
      </conversionOrExercisePrice>
      <transactionDate>
         <value>2004-01-06</value>
      </transactionDate>
      <transactionCoding>
         <transactionFormType>4</transactionFormType>
         <transactionCode>M</transactionCode>
         <equitySwapInvolved>0</equitySwapInvolved>
      </transactionCoding>
      <transactionAmounts>
         <transactionShares>
           <value>2500</value>
         </transactionShares>
         <transactionPricePerShare>
           <value>3.44</value>
         </transactionPricePerShare>
         <transactionAcquiredDisposedCode>
           <value>D</value>
         </transactionAcquiredDisposedCode>
      </transactionAmounts>
      <exerciseDate>
         <value>1999-10-21</value>
      </exerciseDate>
      <expirationDate>
         <value>2009-10-21</value>
      </expirationDate>
      <underlyingSecurity>
         <underlyingSecurityTitle>
           <value>Common Stock</value>
         </underlyingSecurityTitle>
         <underlyingSecurityShares>
           <value>2500</value>
         </underlyingSecurityShares>
      </underlyingSecurity>
      <postTransactionAmounts>
         <sharesOwnedFollowingTransaction>
           <value>55000</value>
         </sharesOwnedFollowingTransaction>
      </postTransactionAmounts>
      <ownershipNature>
         <directOrIndirectOwnership>
           <value>D</value>
         </directOrIndirectOwnership>
      </ownershipNature>
   </derivativeTransaction>
 </derivativeTable>
   <remarks>All transactions reported on this Form 4 were executed pursuant to a stock trading plan established pursuant to rule 10b5-1.</remarks>
   <ownerSignature>
      <signatureName>John H. Mathias</signatureName>
      <signatureDate>2004-01-07</signatureDate>
   </ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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