Extech 42511 Dual Laser Infrared Thermometer Item is a Class II laser product, 1mW power output. Fast response 12:1 infrared thermometer with backlit dual LCD display Dual laser for accurate targeting with fast (0.15s) response time At 12-Inch (30.5cm) distance two laser points converge to 1-Inch target spot Temperature range:-58 to 1100-Degrees F (-50 to 600-Degrees C) 0.10 to 1.00 adjustable emissivity increases measurement accuracy for different surface