-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 DQYC80ZwOZAIVzA6kW8kYSWtKKzSZb87pEIVcjbgKZ+GhSpp7bAY6zHjAcLWIEd+
 xkSVBDvG609R+02MNeH2jA==

<SEC-DOCUMENT>0000914190-07-000688.txt : 20071218
<SEC-HEADER>0000914190-07-000688.hdr.sgml : 20071218
<ACCEPTANCE-DATETIME>20071218182938
ACCESSION NUMBER:		0000914190-07-000688
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20070425
FILED AS OF DATE:		20071218
DATE AS OF CHANGE:		20071218

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ELECTRO SENSORS INC
		CENTRAL INDEX KEY:			0000351789
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
		IRS NUMBER:				410943459
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6111 BLUE CIRCLE DR
		CITY:			MINNETONKA
		STATE:			MN
		ZIP:			55343-9108
		BUSINESS PHONE:		9529300100

	MAIL ADDRESS:	
		STREET 1:		6111 BLUE CIRCLE DR
		CITY:			MINNETONKA
		STATE:			MN
		ZIP:			55343

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HELLER ROBERT W
		CENTRAL INDEX KEY:			0000905556

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-09587
		FILM NUMBER:		071314443

	MAIL ADDRESS:	
		STREET 1:		10992 MOUNT CURVE ROAD
		CITY:			EDEN PRAIRIE
		STATE:			MN
		ZIP:			55347
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>edgar.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-04-25</periodOfReport>

    <issuer>
        <issuerCik>0000351789</issuerCik>
        <issuerName>ELECTRO SENSORS INC</issuerName>
        <issuerTradingSymbol>ELSE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000905556</rptOwnerCik>
            <rptOwnerName>HELLER ROBERT W</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6111 BLUE CIRCLE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>MINNETONKA</rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode>55343</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Non-Qualified Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.36</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2007-04-25</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2007-04-25</value>
            </exerciseDate>
            <expirationDate>
                <value>2017-04-24</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value></value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Bradley D. Slye as Attorney-in-Fact for Robert W. Heller</signatureName>
        <signatureDate>2007-12-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>hellerpoa.htm
<DESCRIPTION>POWER OF ATTORNEY
<TEXT>
<HTML><BODY><PRE>POWER OF ATTORNEY





 The undersigned hereby constitutes and appoints Bradley D. Slye and

Fredrikson & Byron ("Attorneys-in-Fact"), or any one of them acting alone, the

undersigned's true and lawful attorney-in-fact and agent with full power of

substitution and resubstitution, for the undersigned and in the undersigned's

name, place and stead, in any and all capacities, to sign any or all Forms 3,

Forms 4 or Forms 5 relating to beneficial ownership of securities of Electro-

Sensors, Inc. (the "Issuer"), to file the same, with all exhibits thereto and

other documents in connection therewith, with the Securities and Exchange

Commission and to deliver a copy of the same to the Issuer, granting unto said

attorney-in-fact and agent full power and authority to do and perform each and

every act and thing requisite and necessary to be done in and about the premises,

as fully to all intents and purposes as the undersigned might or could do in

person, hereby ratifying and confirming all said attorney-in-fact and agent, or

his substitute or substitutes, may lawfully do or cause to be done by virtue

thereof.  The undersigned acknowledges that the foregoing attorney-in-fact, in

serving in such capacity at the request of the undersigned, is not assuming any

of the undersigned's responsibilities to comply with Section 16 of the

Securities Exchange Act of 1934.



 This Power of Attorney shall remain in effect until such time as the

undersigned is no longer subject to the provisions of Section 16 of the

Securities Exchange Act of 1934 with respect to securities of the Issuer or

until this Power of Attorney is replaced by a later dated Power of Attorney or

revoked by the undersigned in writing.



 The undersigned hereby indemnifies the Attorneys-in-Fact for all losses

and costs the Attorneys-in-Fact may incur in connection with or arising from

the Attorneys-in-Fact's execution of their authorities granted hereunder.



 IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to

be executed as of this 16th day of August, 2007.





      /s/ Robert W. Heller

      Robert W. Heller





















</PRE></BODY></HTML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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