May 9, 2021

Professional Tool Reviews for Pros

Klein Tools TI250 Rechargeable Thermal Imager

klein Rechargeable Thermal Imager

Klein TI250 Thermal Imager Simplifies Troubleshooting

The Klein TI250 Rechargeable Thermal Imager presents an affordable and simple troubleshooting solution for electricians, plumbers, HVAC techs, inspectors, and other trade Pros. With its LCD screen, the TI250 can quickly and easily suss out any potential maintenance issues.

10-Second Summary

  • Model: Klein TI250
  • Check hot spots in motors, pumps, panels, wiring, and more
  • Cold spot detection for tracing unseen water damage, locating clogs, and detecting leaks
  • 2.4″ 120×90 TFT LCD screen
  • Sensor resolution: 10,800 pixels
  • High and low temperature points
  • Crosshairs to pinpoint temperatures
  • Warranty: 1 year
  • Price: $249.99

Running Hot and Cold

With a sensor resolution of 10,800 pixels (120×90 resolution), the Klein Rechargeable Thermal Imager gives you some solid troubleshooting insight into any maintenance issues that can arise on the job. The 2.4″ TFT LCD screen looks easy to read and lets you select between three different color palettes.

klein Rechargeable Thermal Imager

The Klein TI250 has a temperature range between -4° and 752°F and accuracy between 2° and 3° (or 3%). With both high and low temperature points, you can quickly locate hot spots in engines, pumps, wiring, or electrical panels. Meanwhile, you should find water damage behind walls, clogs in pipes, and leaks easy to spot without having to guess.

This thermal imager also features crosshairs to pinpoint specific temperatures, and you have options for setting temperature alarms.

Powered by a rechargeable 1350mAh Li-ion battery, you don’t have to worry about carrying spare batteries around. With a 450mA USB power source, it takes around 3 hours to fully charge the internal battery.

Finally, with its 3.1 x 1 x 3.1 in. frame, the TI250 looks like it should fit into any contractor’s bag unobtrusively.


The Klein TI250 Rechargeable Thermal Imager retails for around $249.99, and includes a 1-year warranty.

Klein TI250 Specifications

  • Model: Klein TI250
  • Photo capture
  • Relative humidity: <90% non-condensing
  • Operating temp: 32° to 113°F (0° to 45°C)
  • Sensor: VOX Micro bolometer
  • Sensor resolution: 10,800 pixels
  • Field of view (FOV): 50 degrees
  • Frame rate: 9 Hz
  • Sensitivity: <60 mk
  • Temperature range: -4° to 752° F (-20° to 400° C)
  • Temp. resolution: 0.1°F/0.1°C (+/-3° or 3%)
  • Temperature display: High, Low, and Center point
  • Emissivity: 0.1 to 0.99 adjustable (0.95 default)
  • Display Type: 2.4″ TFT LCD
  • Color palettes: Ironbow, Rainbow, Gray
  • Image format: BMP
  • Image storage: microSD Card (not included)
  • Dimensions: 3.18 x 3.11 x 1.02 in. (80.8 x 79 x 25.7 mm)
  • Weight: 5.5 oz. (156 grams)
  • Power: 3.7V lithium polymer battery / 1350mAh (USB rechargeable)
  • Required charger current / voltage: 800mA / 5V DC
  • Charging time: 450mA / 3 hours
  • Auto power off: User-selectable for 5, 10, or 30 minutes
  • Drop protection: 6.6 ft. (2m)
  • Standards: Conforms to UL STD. 61010-1 and Certified to CSA STD. C22.2 No. 61010-1
  • Price: $249.99

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