New HSI250 Thermal Imaging Cameras Can Auto Detect Highest and Lowest Temperature

Press Release Summary:

  • Offer 160 x 120 thermal array for total of 19,200 individual pixels
  • Includes Noise Equivalent Temperature Difference (NETD) of less than 40 millikelvins at 25°C
  • Ideal for scanning and checking for dangerous and expensive overheat in a wide variety of locations

Original Press Release:

New Generation of Wahl Heat Spy® Thermal Imaging Cameras Now Available from Palmer Wahl

HSI250 is the first new model in the series

Asheville, NC: Palmer Wahl Instruments, Inc. announces the introduction of its newest line of Wahl Heat Spy® Thermal Imaging cameras. The first available model is the Heat Spy® Imager HSI250 handheld thermography camera. The HSI250 has a 160 x 120 thermal array for a total of 19,200 individual pixels – superior to the typical 80 x 60 arrays with only 4,800 pixels found in other units of this class. Featuring a lightweight, ergonomic design, this full featured unit is ideal for scanning and checking for dangerous and expensive overheat in a wide variety of locations. The included laser pointer assists in properly aiming the center of the screen at the target. Camera has two year warranty, while thermal array has ten year warranty. 

The HSI250 includes a Noise Equivalent Temperature Difference (NETD) of less than 40 millikelvins at 25°C; when combined with one of the four included color palettes, this allows the user to more clearly define temperature differentials to highlight what you want to reveal in your thermal image. Enable the seeking max & min point cursors to auto detect the highest and lowest temperature on the screen, to assist in finding the points of interest.

This model is useful for inspection of electrical, motors, bearing housings, buildings, energy leaks, missing insulation, water leaks, leaking HVAC ducts, overheating pumps, and compressors. Switch between two temperature ranges, -4° to 320°F or 212° to 1022°F as well as Celsius and Kelvin equivalents, with an accuracy of ±2°C or ±2%, whichever is greater. View images live on screen or save to the included 8GB Micro SD Card for inclusion in reports. The built in rechargeable lithium ion battery allows for eight hours of continuous run time. 

At a weight of less than one pound, easily carry the HSI250 hands free with the optional soft zippered pouch with carabiner belt clip, or the optional neck strap with detachable connection loop. NIST Traceable calibration is available.

As always, Palmer Wahl seeks to go “Beyond the Scale” for our customers. Look for the next new model in this series to be available in late Summer 2020.

Contact Palmer Wahl Instruments, Inc. at info(at) or toll free by phone at 1-800-421-2853 for more information, or for assistance in choosing the best model for your application.

About Palmer Wahl: Palmer Wahl Instruments, Inc. is a 184 year old manufacturer of temperature and pressure instruments for industrial applications. “Beyond the Scale” symbolizes our commitment to meet and exceed the requirements of our customers with expert industry application knowledge, innovative engineered designs, and superior temperature and pressure measurement solutions with an eye towards the future. Contact us at (828) 658-3131 or visit us on the web at

Communications Department
Palmer Wahl Instruments, Inc.
(828) 658-3131

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