<SUBMISSION>
<ACCESSION-NUMBER>0001275287-05-004560
<TYPE>8-K
<PUBLIC-DOCUMENT-COUNT>2
<PERIOD>20051109
<ITEMS>8.01
<ITEMS>9.01
<FILING-DATE>20051110
<DATE-OF-FILING-DATE-CHANGE>20051109
<FILER>
<COMPANY-DATA>
<CONFORMED-NAME>MESA LABORATORIES INC /CO
<CIK>0000724004
<ASSIGNED-SIC>3823
<IRS-NUMBER>840872291
<STATE-OF-INCORPORATION>CO
<FISCAL-YEAR-END>0331
</COMPANY-DATA>
<FILING-VALUES>
<FORM-TYPE>8-K
<ACT>34
<FILE-NUMBER>000-11740
<FILM-NUMBER>051191583
</FILING-VALUES>
<BUSINESS-ADDRESS>
<STREET1>12100 W 6TH AVE
<CITY>LAKEWOOD
<STATE>CO
<ZIP>80228
<PHONE>3039878000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>12100 W 6TH AVE
<CITY>LAKEWOOD
<STATE>CO
<ZIP>80228
</MAIL-ADDRESS>
<FORMER-COMPANY>
<FORMER-CONFORMED-NAME>MESA MEDICAL INC
<DATE-CHANGED>19921123
</FORMER-COMPANY>
</FILER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>ml4092.htm
<DESCRIPTION>FORM 8-K
<TEXT>
<html>

<head>
<title></title>
</head>

<body bgcolor="white">




<hr size="4" width="100%" noshade color=black>


<p  align="center"><font size="5" face="Times New Roman"><b>U.S. Securities and Exchange Commission<br> </b></font>
<font size="3"><b>Washington, D.C. 20549</b></font></p>
<p  align="center">
<font size="5" face="Times New Roman"><b>Form 8-K</b></font></p>
<p  align="center">
<font size="3" face="Times New Roman"><b>Current Report <br> Pursuant to Section 13 or 15(d) of the Securities and Exchange Act of 1934</b></font></p>
<table align="center"  border="0" style="border-collapse:collapse" cellspacing="0"  cellpadding="0"  width="100%">

 <tr>
  <td width="100%" valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><b>NOVEMBER 9, 2005 </b></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><i>Date of Report (Date of earliest event   Reported)</i></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center">
<font size="6" face="Times New Roman"><b>MESA   LABORATORIES, INC. </b></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><i>(Exact Name of Small Business Issuer as   Specified in its Charter)</i></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><b>Commission File Number: 0-11740</b></font></p>  </td>
 </tr>
</table>

<BR>
<table align="center"  border="0" style="border-collapse:collapse" cellspacing="0"  cellpadding="0"  width="100%">

 <tr>
  <td width="49%" valign="top">
  <p  align="center"><font size="2" face="Times New Roman"><b>COLORADO </b></font></p>  </td>
  <td width="2%" valign="top">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
  <td width="49%" valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><b>84-0872291</b></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
  <td  valign="top">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><i>(State or other Jurisdiction of <br>   Incorporation or Organization)</i></font></p>  </td>
  <td  valign="top">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
  <td  valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><i>(I.R.S. Employer<br>   Identification No.)</i></font></p>  </td>
 </tr>
</table>

<BR>
<table align="center"  border="0" style="border-collapse:collapse" cellspacing="0"  cellpadding="0"  width="100%">

 <tr>
  <td width="49%" valign="bottom">
  <p  align="center">
<font size="2" face="Times New Roman"><b>12100 WEST SIXTH AVENUE, LAKEWOOD, COLORADO </b></font></p>  </td>
  <td width="2%" valign="bottom">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
  <td width="49%" valign="bottom">
  <p  align="center">
<font size="2" face="Times New Roman"><b>80228</b></font></p>  </td>
 </tr>
 <tr>
  <td  valign="bottom">
  <hr size="1" width="100%" noshade color=black>

  </td>
  <td  valign="bottom">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
  <td  valign="bottom">
  <hr size="1" width="100%" noshade color=black>

  </td>
 </tr>
 <tr>
  <td  valign="bottom">
  <p  align="center">
<font size="2" face="Times New Roman"><i>(Address of Principal Executive Offices)</i></font></p>  </td>
  <td  valign="bottom">
  <p  align="center"><font size=1 face="Times New Roman">&nbsp;</font></p> </td>
  <td  valign="bottom">
  <p  align="center">
<font size="2" face="Times New Roman"><i>(Zip Code)</i></font></p>  </td>
 </tr>
</table>

<BR>
<table align="center"  border="0" style="border-collapse:collapse" cellspacing="0"  cellpadding="0"  width="100%">

 <tr>
  <td width="100%" valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><b>Issuer&#146;s telephone number, including area code: (303) 987-8000</b></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><b>Not Applicable.</b></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p  align="center">
<font size="2" face="Times New Roman"><i>(Former name or former address, if changed   since last report)</i></font></p>  </td>
 </tr>
</table>

<p>
<font size="2" face="Times New Roman">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below): </font></p>
<table align="center"  border="0" style="border-collapse:collapse" cellspacing="0"  cellpadding="0"  width="100%">

 <tr>
  <td width="5%" valign="top">
  <p>
<font size="2" face="Wingdings">o</font></p>  </td>
  <td width="95%" valign="top">
  <p>
<font size="2" face="Times New Roman">Written   communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="2" face="Wingdings">o</font></p>  </td>
  <td  valign="top">
  <p>
<font size="2" face="Times New Roman">Soliciting   material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="2" face="Wingdings">o</font></p>  </td>
  <td  valign="top">
  <p>
<font size="2" face="Times New Roman">Pre-commencement   communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR   240.14d-2(b))</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="2" face="Wingdings">o</font></p>  </td>
  <td  valign="top">
  <p>
<font size="2" face="Times New Roman">Pre-commencement   communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR   240.13e-4(c))</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
 </tr>
</table>


<hr size="4" width="100%" noshade color=black>
<div style="page-break-before:always"></div>
<PAGE>
<br>

<p>
<font size="2" face="Times New Roman"><b>ITEM 8.01&nbsp;&nbsp;OTHER EVENTS.</b></font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;On November 9, 2005, the Company issued a press release, a copy of which is attached hereto as Exhibit 99.1, announcing that its Board of Directors has authorized a 300,000 common stock repurchase program. Pursuant to the authorization, Mesa Laboratories, Inc. may purchase shares from time to time in the open market or through privately negotiated transactions. This plan will continue until the maximum is reached or the plan is terminated by further action of the Board.</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In the same press release, the Board of Directors also announce that the Company would pay a special one time dividend of $.25 per common share of stock payable December 15, 2005, to shareholders of record on December 1, 2005.</font></p>

<p><font size="2" face="Times New Roman"><b>ITEM 9.01&nbsp;&nbsp;FINANCIAL STATEMENTS AND EXHIBITS. </b></font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Exhibits:</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;99.1&nbsp;&nbsp;Press Release issued November 9, 2005 </font></p>

<hr size="1" width="100%" noshade color=black>
<div style="page-break-before:always"></div>
<PAGE>
<br>

<p  align="center">
<font size="2" face="Times New Roman"><b>SIGNATURES</b></font></p>
<p>
<font size="2" face="Times New Roman">Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. </font></p>
<table align="center"  border="0" style="border-collapse:collapse" cellspacing="0"  cellpadding="0"  width="100%">

 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  colspan="2" valign="top">
  <p>
<font size="2" face="Times New Roman">MESA   LABORATORIES, INC.</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  colspan="2" valign="top">
  <p>
<font size="2" face="Times New Roman">(Issuer)</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  colspan="2" valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  colspan="2" valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
 </tr>
 <tr>
  <td width="60%" valign="top">
  <p>
<font size="2" face="Times New Roman">DATED:   November 9, 2005</font></p>  </td>
  <td width="6%" valign="top">
  <p>
<font size="2" face="Times New Roman">BY:</font></p>  </td>
  <td width="34%" valign="top">
  <p>
<font size="2" face="Times New Roman">/s/ Luke R.   Schmieder</font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="2" face="Times New Roman">Luke R.   Schmieder </font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="2" face="Times New Roman">President,   Chief Executive Officer, </font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p>
<font size="2" face="Times New Roman">Treasurer   and Director</font></p>  </td>
 </tr>
</table>
<BR>

<hr size="1" width="100%" noshade color=black>
<div style="page-break-before:always"></div>
<PAGE>
<br>

<p  align="center">
<font size="2" face="Times New Roman"><b>INDEX TO EXHIBITS</b></font></p>
<table align="center"  border="0" style="border-collapse:collapse" cellspacing="0"  cellpadding="0"  width="100%">

 <tr>
  <td width="10%" valign="top">
  <p style="margin-left:1em; text-indent:-1em">
<font size="1" face="Times New Roman"><b>Exhibit No. </b></font></p>  </td>
  <td width="5%" valign="top">
  <p style="margin-left:1em; text-indent:-1em">
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td width="65%" valign="top">
  <p>
<font size="1" face="Times New Roman"><b>Description </b></font></p>  </td>
  <td width="5%" valign="top">
  <p>
<font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td width="15%" valign="top">
  <p>
<font size="1" face="Times New Roman"><b>Method of Filing</b></font></p>  </td>
 </tr>
 <tr>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
  <td  valign="top">
  <p style="margin-left:1em; text-indent:-1em"><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
  <td  valign="top">
  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <hr size="1" width="100%" noshade color=black>

  </td>
 </tr>
 <tr>
  <td  valign="top">
  <p style="margin-left:1em; text-indent:-1em"><font size="2" face="Times New Roman">99.1</font></p>  </td>
  <td  valign="top">
  <p style="margin-left:1em; text-indent:-1em"><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p><font size="2" face="Times New Roman">Press   release dated November 9, 2005</font></p>  </td>
  <td  valign="top">
  <p><font size="1" face="Times New Roman">&nbsp;</font></p>  </td>
  <td  valign="top">
  <p><font size="2" face="Times New Roman">Filed   herewith</font></p>  </td>
 </tr>
</table>

<BR>

<hr size="1" width="100%" noshade color=black>

</body>

</html>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ml4092ex991.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
<html>

<head>
<title></title>
</head>

<body bgcolor="white">




<p  align=right><font size="2" face="Times New Roman"><b>EXHIBIT 99.1 </b></font></p>
<p  align="center">
<font size="2" face="Times New Roman"><b>NEWS FOR IMMEDIATE RELEASE: NOVEMBER 9, 2005</b></font></p>
<p  align="center">
<font size="2" face="Times New Roman"><b>MESA LABS DECLARES QUARTERLY AND SPECIAL DIVIDENDS AND INITIATES NEW STOCK REPURCHASE PLAN</b></font></p>
<p>
<font size="2" face="Times New Roman"><b>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;LAKEWOOD, CO &#150;</b> Mesa Laboratories, Inc. (NASDAQ:MLAB) today announced that its Board of Directors has declared a regular quarterly dividend of $.07 per share of common stock.&#160; In addition the Board of Directors has declared a special one time dividend of $.25 per share of common stock.&#160; Both dividends will be payable December 15, 2005, to shareholders of record on December 1, 2005.</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Since going public in 1984 Mesa Labs has maintained strong cash positions and has continued to build its balance sheet through steady earnings growth.&#160; The increase in the regular quarterly dividend rate from $.06 to $.07 per common share represents a 17 percent increase.&#160; For the third year in a row, the Board of Directors has chosen to issue a special year-end dividend increasing the special dividend to $.25 per common share or 25 percent from last year&#146;s $.20 per common share rate. </font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Board of Directors also affirmed its intention to continue the Company&#146;s stock repurchase plan by initiating a new buyback plan which allows for the repurchase of 300,000 shares of the Company&#146;s common stock. Pursuant to the authorization, Mesa Laboratories, Inc. may purchase shares from time to time in the open market or through privately negotiated transactions. This plan will continue until the maximum is reached or the plan is terminated by further action of the Board.</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Mesa Laboratories develops, acquires, manufactures and markets electronic instruments for industrial, pharmaceutical and medical applications.</font></p>
<p>
<font size="2" face="Times New Roman">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;This news release contains forward-looking statements which involve risks and uncertainties.&#160; The Company&#146;s actual results could differ materially from those in any such forward-looking statements.&#160; Additional information concerning important factors that could cause results to differ materially from those in any such forward-looking statement is contained in the Company&#146;s Annual Report on Form-10KSB for the year ended March 31, 2005 as filed with the Securities and Exchange Commission, and from time to time in the Company&#146;s other reports on file with the Commission.</font></p>

<p><font size="2" face="Times New Roman">CONTACTS:<br> Luke R. Schmieder; President-CEO / Steven W. Peterson; VP Finance-CFO<br> Mesa Laboratories, Inc.<br> 303.987.8000</font></p>


<hr size="1" width="100%" noshade color=black>

</body>

</html>
</TEXT>
</DOCUMENT>
</SUBMISSION>
