12 Volt Laser Temp Gun Cordless Thermometer Kit for HVAC/R The M12 laser temp-gun thermometer for HVAC/r is a heavy duty pistol grip infrared thermometer for professional commercial and industrial HVAC/r applications. Powered by the Milwaukee M12 lithium-ion battery, the 2277-21 can safely measure temperatures between -22 to 1472° f (-30 to 800° c) with a 40 to 1 distance to spot ratio for even the most demanding industrial applications. In addition, the M12 laser temp-gun thermometer for HVAC/r was designed with an extra bright LED flood light to increase end user productivity. The 2277-21 is covered by the Milwaukee 5-year warranty. Features: 12 Volts Lithium-Ion Battery Trigger Switch Minus 22 Degrees to 1472 Degree Temperature Range 30 Minute Charger Includes 1 Battery <500ms Response Time Includes 2277-20 M12 Laser TEMP-GUN Thermometer for HVAC/R, M12 LITHIUM-ION Battery Pack, 30-Minute Charger, K-Type Thermocouple, Carrying Case, Manual LED Floodlight 5 Year Warranty Since its founding in 1924, Milwaukee has focused on a single vision: To produce the best heavy-duty electric power tools and accessories available to the professional user. Today, the Milwaukee name stands for the highest quality, durable and reliable professional tools money can buy.