Infrared Thermometer Gun16:1 distance to spot ratio. Four digit backlit dual display. Laser sight switchable. Electronic trigger lock for continuous measurement. Low-battery indication and auto power off. A built-in jack for a K-Type thermocouple probe. Accuracy: ±2%; Includes: (3) AAA Alkaline Batteries; Resolution (Angle): 0.100°; Response: 1 sec.; Temperature Range: -76.0 °F [Min], -60.0 °C [Min], 1157.0 °F [Max], 625.0 °C [Max]; Weight: 1 lb.