Features:  Portable infrared thermometer with wide measuring range is suitable for non-contact temperature measurement of object surface.  Clear LCD screen for easy reading, with data hold function and ℃/ ℉ unit switching function.  Normal or maximum measurement mode selectable; with temperature upper/ lower limit alarm function.  With laser on/ off function in measurement mode; with emissivity setting function.  Compact and lightweight, comfortable and non-slip handle, powered by 2 AAA batteries (not included), easy to use.  Widely used in food processing, refrigeration, metal processing, industrial industry, manufacturing and so on.    Note:  1. Please read the user manual carefully for more details.  2. Size and color may be slightly different due to manual measurement and different light conditions. Thanks for understanding.    Specifications:  Model: HT641A+/ HT641B+ (Optional)  Temperature Measuring Range:  HT641A+: -50~400℃ / -58~752℉  HT641B+: -50~600℃ / -58~1112℉  Accuracy: ±3℃ (-50~0℃ / -58~32℉), ±2% or ±2℃ (0~600℃ / 32~1112℉)  Temperature Unit: ℃/ ℉  Color: Black & Red  Material: ABS  Screen: LCD  D : S: 12 :1  Emissivity: 0.10~1.00  Response Spectrum: 8~14μm  Laser: ＜1mW/ 630-670nm, Level 2  Auto Shutdown: about 30s  Power Supply: 2 * AAA Battery (not included)  Working Temperature: 0~40℃  Storage Temperature: -10~60℃  Item Size: 142 * 85 * 38mm / 5.59 * 3.35 * 1.50in  Item Weight: 97g / 3.42oz  Package Size: 18.5 * 11.5 * 5.3cm / 7.28 * 4.53 * 2.09in  Package Weight: 184g / 6.48oz    Package List:  1 * Infrared Thermometer  1 * User Manual (English)