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: 8~14m 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)