<SEC-DOCUMENT>0001047469-19-004571-index.html : 20190806
<SEC-HEADER>0001047469-19-004571.hdr.sgml : 20190806
<ACCEPTANCE-DATETIME>20190806161009
ACCESSION NUMBER:		0001047469-19-004571
CONFORMED SUBMISSION TYPE:	S-3ASR
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20190806
DATE AS OF CHANGE:		20190806
EFFECTIVENESS DATE:		20190806

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MESA LABORATORIES INC /CO
		CENTRAL INDEX KEY:			0000724004
		STANDARD INDUSTRIAL CLASSIFICATION:	INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
		IRS NUMBER:				840872291
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			0331

	FILING VALUES:
		FORM TYPE:		S-3ASR
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	333-233042
		FILM NUMBER:		191002159

	BUSINESS ADDRESS:	
		STREET 1:		12100 W 6TH AVE
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228
		BUSINESS PHONE:		3039878000

	MAIL ADDRESS:	
		STREET 1:		12100 W 6TH AVE
		CITY:			LAKEWOOD
		STATE:			CO
		ZIP:			80228

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	MESA MEDICAL INC
		DATE OF NAME CHANGE:	19921123
</SEC-HEADER>
<DOCUMENT>
<TYPE>S-3ASR
<SEQUENCE>1
<FILENAME>a2239420zs-3asr.htm
<DESCRIPTION>S-3ASR
<TEXT>
Document 1 - file: a2239420zs-3asr.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-4.1
<SEQUENCE>2
<FILENAME>a2239420zex-4_1.htm
<DESCRIPTION>EX-4.1
<TEXT>
Document 2 - file: a2239420zex-4_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-5.1
<SEQUENCE>3
<FILENAME>a2239420zex-5_1.htm
<DESCRIPTION>EX-5.1
<TEXT>
Document 3 - file: a2239420zex-5_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-23.1
<SEQUENCE>4
<FILENAME>a2239420zex-23_1.htm
<DESCRIPTION>EX-23.1
<TEXT>
Document 4 - file: a2239420zex-23_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-25.1
<SEQUENCE>5
<FILENAME>a2239420zex-25_1.htm
<DESCRIPTION>EX-25.1
<TEXT>
Document 5 - file: a2239420zex-25_1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g165233kki001.jpg
<DESCRIPTION>G165233KKI001.JPG
<TEXT>
Document 6 - file: g165233kki001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g892804.jpg
<DESCRIPTION>G892804.JPG
<TEXT>
Document 7 - file: g892804.jpg

</DOCUMENT>
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