Features: One laser line for accurate target aiming to improve measurement accuracy. Color LCD display design, you can see the measurement data of real time temperature clearly, easy to use even under poor illumination. Simple one-handed operation, suitable for almost all ages. Two types for you to choose, KM-380AH, KM-550AH, you can choose according to your demands. and temperature unit conversion design, you can adjust it easily according to your use habits. With low battery indication, data holding, automatic shut off function. Specifications: Name: Infrared Temperature Measurement Device Material: plastics Type: KM-380AH, KM-550AH (optional) Power: 2 * AAA batteries (not included) KM-380AH measurement-range: -50 to 380/-58 to 716 KM-550AH measurement-range: -50 to 550/-58 to1022 Accuracy: 2% or 2C Laser line quantity: 1 Distance spot-ratio: 12:1 Emissivity: 0.1-1.0 Response time/wavelength: 500ms(8-14um) Repeatability: 1% or 1C Resolution: 0.1C or 0.1F Storage temperature: -20C to 50(-4-122) Operating temperature: 0C-50C(32-122) Max temperature measurement: Yes / switch: Yes Low battery indication: Yes Laserline target display selection: Yes Automatic data-hold: Yes Auto power shut off: Yes Item size: 163 * 114 * 32mm / 6.42 * 4.49 * 1.26in Item weight: 135g / 4.76ounce Package size: 180 * 140 * 50mm / 7.09 * 5.51 * 1.97in Package weight: 166g / 5.86ounce Packing List: 1 * Infrared Temperature Measurement Device 1 * Instruction Manual