From the product description, check product page for current description, price and availability:

• Better accuracy+ adjustable emissivity: the distance to spot ratio is 12: 1; adjustable emissivity improves Measurement accuracy across different surface types, just regulate the emissivity of your 1022D according to the instruction (0. 1-1. 0)
• Dual laser + target quicker: dual-laser targeting technology makes it easier to visualize the area being measured by an IR thermometer, resulting in higher precision versus a single laser; measure surface temperature ranging from -58°F to 1022°F/ -50°C to 550°C; response time: ≤500Ms
• Multifunction: 1022D features with maximum measure function; The LCD screen is back-light, it also has an auto-off function and a low battery indicator to extend the battery life so you never accidentally run out of juice (battery included)
• Versatile design: infrared technology makes this thermometer handy to measure the surface temperature of various objects especially temperatures above boiling points and below freezing points; use it when you are cooking and barbequing, performing auto maintenance, doing home repairs, and a host of other tasks
• Note: for best accuracy, the distance between the thermometer and object of measurement should approximately be 14. 17 inches (36cm); temperature readings from this device are inanimate objects, the measured temperature for humans or animals will not be correct. Fda, FCC, CE compliant; class 2 laser, optical power 0. 3-0. 49Mw; 2-year by Etekcity