Electronic Specialties EST-45 Red 6.5" x 3.5" x 1.5" Non-Contact Infrared Thermometer with Laser Pointer Accurate non-contact surface temperature readings with accuracy rating of 1 percent Fast response time for quicker work decisions - professional grade construction and design Temperature Range of -22 to 932F or -30 to 500C Fast response time for quicker work decisions Applications: catalytic convertors, air conditioners, heaters, radiators, brake & tire inspections, coolant temperature, engine misfires, diesel engines, electrical & industrial