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 2°C  Laser line quantity: 1  Distance spot-ratio: 12:1  Emissivity: 0.1-1.0  Response time/wavelength: 500ms(8-14um)  Repeatability: ±1% or ± 1°C  Resolution: 0.1°C or 0.1°F  Storage temperature: -20°C to 50℃(-4-122℉)  Operating temperature: 0°C-50°C(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