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Non Contact
Hand held IR Thermometers


This non contact laser targeting IR thermometers give instant temperature readings in the range -32 to + 535 degrees C ( -25 to +999 degs F)
Non contact thermometer

Features of the ST series

  • Laser Sighting bright spot
  • Instant surface temperature readings save hours of operator time.
  • Display hold
  • Max Temperature Display
  • Very economical no probes to replace as with contact type devices.
  • Large backlit LCD display
  • Includes carrying case
  • NIST traceable calibration
Related products
Contact digital thermometers
Non Contact Infra Red Thermometers
IR thermometer spot sizeInfra red thermometry is the most cost efficient way of measuring surface temperature. Reading are produced instantly without the need to carefully position the probe or interfere with the object being measured. The Raytek series infra red thermometers are a precision units already in use at hundreds of locations worldwide. Select your unit depending on the temperature range and the distance to the object you want to measure. Calculate your spot size is from the ratio of Distance/Spot size given in the specifications. The ST20XB on this page is 12:1 D:S so that at 12 inch distance the spot will be 1 inch diameter. For longer range units see the ST60XB/ST80XBand MXTD series IR thermometers
Specification of ST series IR thermometers
Model Temperature Range Distance to Spot Ratio
ST20XB -32 - + 535 degs C (-25 to +999 F ) 12:1
Emissivity 0.95
Response time to 95% reading 0.5 seconds
Accuracy +/ 1% of reading or +/- 1 deg C whichever is greater above 23 deg C
+/- 2 degs C between -18C to +23C ( 0 to 74 F )
+/- 2.5 degs C between -26C to -18C ( -15 to 0 F )
+/- 3 degs C between - 32 C to -36 C ( -25 to -15 F )
Repeatability better than +/- 0.5 % or +/- 0.1 deg C whichever is greater
Display resolution 0.2 degs C ( 0.5 degs F )
Power 9 Volt Alkaline or NiCd Battery
Ambient operating conditions 0 - 50 C 10 - 95% RH non condensing
Weight 320 g ( 11 ozs )
Ordering information
Model Temperature Range Laser Price USD Order online
ST20XB -32 - + 535 degs C (-25 to +999 F ) Single point target $189.00 Add item to shopping cart  

Topac Inc. 231 CJC Highway, Suite 103 Cohasset MA 02025 USA
Tel: 781 740 8778 Fax: 781 740 8779

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