Laser target pointer Adjustable emissivity ºF & ºC selectable Backlit digital display Min/max memory Calculates Delta T/Avg 9 measurement memory Audible alarm Fast operation Automatic data hold Low battery indicator Pocket Sized Auto power off Specifications: Temperature range: -20º to 788ºF (-20º to 420ºC) Emissivity: 0.3 to 1.0 (adjustable) Accuracy: ±3.5ºF (±2ºC); ±2% of reading Optical resolution: 8:1 Response time: 500 m/sec Power source: (1) 9-Volt battery Dimensions: 6-1/8" x 1-1/4" x 2" Weight: 0.36 lbs. Supplied With: Emissivity Value Chart Soft faux leather carrying case with belt loop, Velcro flap and strap Lanyard