Amprobe IR-450 [4227490] Infrared Pocket Thermometer -22°F to 932°F (-30°C to 500°C). The Amprobe IR-450 pocket infrared thermometer is a must have tool for everyday applications. The IR450 3-in-1 Thermometer, Laser Pointer, and Flashlight offers a uniquely small and convenient form factor with professional 8:1 distance to spot ratio, a high-quality laser pointer and LED flashlight. Much more portable than traditional infrared thermometers, the IR-450 Infrared Pocket Thermometer can be ready for quick diagnostic checks in a wide variety of applications including: HVAC/R, fire safety and protection, industrial maintenance, automotive and quality control.