Feature: 1. Equipped with white backlight LCD, with over range indication, the measurement results can be visually and clearly displayed on the screen. 2. The built-in laser point can increase the measurement accuracy and is a very practical infrared temperature measuring instrument. 3. The temperature range of measurement is - 50 - 2250℃ (- 58 - 4082℉), with high resolution, small error and more convenient and fast measurement. 4. With automatic data saving function, it can automatically shut down after 20 seconds of idle, low power consumption, and can be used for a long time. 5. Support non-contact measurement, D: S = 50:1, users can get accurate readings within a safer distance range. 6. This hand-held infrared thermometer has ergonomic handle design, with USB interface, and is easy to operate. Specification: Condition: 100% Brand New Item Type: Infrared Thermometer Material: Plastic Model: IR-866U Range: -50-2250°C / -58-4082°F Assumed Ambient Operating Temperature: 23-27°C (73-80°F) Accuracy: -50°C-0°C (-58°F-32°F): ±3°C (5.4°F) 0°C-500°C (32°F-932°F): 1.0%±1°C (1.8°F) 500°C-1000°C (932°F-1832°F): 1.5%±2°C (4°F) 1000 ° C Or More / 1832 °F : 2.0% ± 2 °C (4 ° F) Emissivity: Adjustable: 0.10-1.0 Optical Resolution: D: S = 50:1 Resolution: 0.1 °C (0.1 °F); 1 °C (1 °F) > 1000 Response Time: <250 Ms Spectral Response: 8-14um Polarity Display: Automatic display, "-" means negative, and positive is unsigned. Diode Laser: Output <1mW, 630-670nm, Level 2 (II) Auto Power Off: automatically shut down after 20 seconds of inactivity Operating Temperature: 0°C To 50°C / 32°F To 122°F Storage Temperature: -20 ° C To 60 ° C / -4 ° F To 140 ° F Relative Humidity: Work: 10-95% RH, Storage: <80% RH Power: 6F22 9V Battery (Battery Not Included) Weight: Approx. 1511g / 53.3oz Package List: 1 x Infrared Thermometer (Battery Not Included)1 x Instruction Manual1 x Bracket1 x USB Cable1 x CD1 x Carrying Case Note: Please note that this product is for industrial use and cannot be used to measure human body temperature.