Feature: 1. Infrared technology can be used to measure the surface temperature of electric equipment, as well as objects that difficult to reach while moving, without any damage or pollution 2. Infrared thermometer provides fast and accurate non‑contact measurement 3. Built‑in laser circle come with 13 laser points, which can increase measurement accuracy 4. All record can allow real‑time transmission of IR and TK data to PC via USB 5. Used for food preparation, safety and fire inspection, plastic molding, asphalt, ship, printing ink and dryer temperature, diesel engine maintenance, etc. Specification: Item Type: Infrared ThermometerMaterial: Plastic Model: IR-863U Range: IR: -50~1850℃ (-58~3362℉) TK: -50℃～1300℃/-58～2372℉ Infrared Accuracy: -50℃～0℃/-58～32℉: ±4℃/ 7.2℉ 0~500℃/-58~932℉: ±1.5% or reading ±2℃/ 3.6℉ Above 500℃/ 932℉: ±2.0% or reading ±2℃/ 3.6℉ TK Accuracy: -50℃～1300℃/-58～2372℉: ±1.5% or reading ±1℃/ 1.8℉D:S: 50:1 Emissivity Adjustable: 0.10~1.0 Resolution: 0.1℃ (0.1℉) <1000, 1℃ (1℉)> 1000 Response Time: <250ms Spectral Response: 8~14um Battery: 1 x 9V battery(not include)How to Use: 1. Open the battery cover and install a 9V battery in the battery compartment. 2. Install the battery box and tighten the screws. 3. Turn on the power of the meter.4. Press the "mode" key to select the desired function. Package List: 1 x User Manual1 x Tripod1 x USB Cable1 x CD1 x Toolbox1 x Infrared Thermometer