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Digital Infrared Temperature Scanner with Automatic Emissivity Compensation


Infrared Temperature Scanner  | OS91

Infrared Temperature Scanner

CAD1,155.00 OS91

1 year warranty CE
  • Automatic Emissivity Compensation
  • Scans Temperature Rapidly
  • –46 to 288°C (–50 to 550°F) Range
  • OS91 Features 0.1°C/F Resolution with Scan/Min/Max and Audible Assist
  • Spectral Response from 2 to 20 Microns
  • Fast 80 msec Time Constant
  • Shirt Pocket Size
  • High Impact Housing with Copper EMI Shield
  • Relative Humidity/ Dewpoint Measurement

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Infrared Temperature Measurement Instruments - View related products


The OS91 infrared temperature scanner is a fast and accurate instrument for general purpose surface temperature measurement. The OS91 is microprocessor powered and computer calibrated for high stability, and features a patented Automatic Emissivity Compensation System (AECS) for close up measurements: No emissivity adjustment is required. The factory calibration lasts for the lifetime of the instrument and is designed and calibrated traceable to NIST.

The OS91 has a 0.1° resolution display which can easily be changed between °C and °F with the push of a button. Instant lock, max-reading lock, and min-reading lock features offer the utmost in speed and precision. An audible assist feature beeps when a new Min or Max reading is detected. The OS91 updates its display every 100 msec. The housing is copper coated to shield against EMI/noise, which makes this model attractive in the medical field. The one-piece, high impact design eliminates cable and probe failures and provides durability unmatched in any optical measuring instrument. A psychrometer kit is included to allow measurements of wet and dry bulb temperatures. It also offers a dial indicator to translate these two scanned temperatures into relative humidity and dewpoint values.

For complete product specifications see the Related Links section at the bottom of this page.

Caution: This product and all in the series are not for use in medical evaluations. These products cannot be used to measure body temperature. They are meant for industrial and scientific purposes.
Place Order(Specify Model Number)
Part Number/ Desc.
OS91 Star
Availability: In Stock
Digital temperature scanner, 0.1° resolution
OS91-A Star
Availability: 4 weeks
With analog output
OS91-PEN Star
Availability: 4 weeks
Spare marking pen
All dollar amounts on this site are shown in Canadian currency. Note: Each unit comes complete with relative humidity kit, carrying pouch, marking pen, battery and complete instruction manual.
Ordering Example: (1) OS91 Digital temperature scanner, 0.1° resolution, CAD1,155.00