Non-contact Infrared Thermometer： 1. Accuracy: ±1.5°C or ±1.5% 2. Operating temperature: 10-40°C, humidity: 10-90 RH 3. Storage temperature: -10-40°C 4. Response time: ≤0.8 second 5. Distance to Spot Ratio: 12:1 6. Back lighting 7. Automatic power °F in 10 seconds 8. Use in: Industrial thermometer, meat surface temperature, object's serface temperature etc. Package Include: 1 x Temperature Gun 1 x User Manual How to use： INSTANT & ACCURATE MEASUREMENT: Just simply pull down the trigger and aim the laser at the intended surface to measure, then release the trigger for an instant accurate surface temperature reading.