Calibrated Glass Lab Thermometer with Certificate - Made in USA - Kessler

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Thank you for your interest, but we are currently out of this product. Please call 325-356-5204 if you have any questions.

This "Precision SafetyBLUE Thermometer" is made in the USA by Kessler Thermometer.  This version includes a Calibration Certificate with a calibration made at 152°.  This allows you to have a thermometer that is on exactly in the "mash temp" range. For example, we have one of these in our office and the certificate states that when our thermometer reads 152.2 the temperature is exactly 152°.  This also allows you the ability to calibrate other types of thermometers and temperature probes in your brewing systems.   Click here to see an example of the Calibration Certificate you will receive with this thermometer.

It is a professional grade lab thermometer (vs a classroom thermometer) which will provide the most accurate and precise readings.  Kessler utilizes their proprietary internal liquid which contains no Mercury, but has weight properties similar to give the most accuracy possible.  We also offer a calibrated version of this thermometer.  KesslerUSA is ISO 17025-2005 and ISO9001-2008 accredited and is a member of the ASTM committee on Hydrometers and Thermometers.  For the serious brewer this is the thermometer you want!

  • Know EXACTLY what your temperature is when you are brewing with the Calibrated Thermometer or a thermometer that you have checked with this thermometer.
  • You will receive a Calibration Certificate when you purchase this Thermometer.  
  • -4 to 230°F range with 3" immersion tip
  • Perfect for calibrating temperature probes in brewing systems like HERMS or RIMS
  • Proprietary "Precision Blue" internal liquid gives accuracy as close as possible to mercury and is ASTM approved.
  • Not all lab thermometers are made the same, these thermometers are much more accurate than the "classroom" grade often sold to homebrewers.
  • Glass hole in top of thermometer for string or wire hanging, will not pull off like caps on other lab thermometers
  • Each thermometer has a unique serial number for documentation purposes. 
  • During our in house testing using the calibrated version of this thermometer we have seen other brands be as much as 5° off actual temperature which can cause issues when brewing
  • Kessler Thermometer and Chase Instruments is a family owned business that has been making high quality, accurate instruments since 1934!