Fangrui Product Details 1. Tasi Ta621a Digital Dew Point Thermometer Ambient Temperature Humidity Gauge 2. Ambient Temperature Range: -20-60 Degrees Celsius -4-140 Degrees Fahrenheit; Accuracy: About 1.5 Degrees Celsius About 3 Degrees Fahrenheit 3. Relative Humidity Range: 0- Rh; Accuracy: About Rh (20-rh) Rh (other Ranges) 4. Wet Bulb Temperature Range: -20-60 Degrees Celsius (-4-140 Degrees Fahrenheit); Accuracy: About 1.5 Degrees Celsius About 3 Degrees Fahrenheit 5. Dew Point Temperature Range: -20-60 Degrees Celsius (-4-140 Degrees Fahrenheit); Accuracy: About 1.5 Degrees Celsius About 3 Degrees Fahrenheit 6. Display: Four-digit Display, Up To 9999 7. Sensor: Shtc3 8. Sampling Rate: 8 Timessecond 9. Update Speed: 3 Timessecond 10. Automatic Shutdown: 10 Minutes (can Be Turned Off Manually) 11. Operating Environment: -10-50 Degrees Celsius, Relative Humidity Within , Indoor Altitude Less Than 2000m 12. Storage Environment: -10-50 Degrees Celsius, Relative Humidity Within (take Out The Battery) 13. Power Supply: 3 X 1.5v Aaa (r03 Lr03) (not Included) 14. Display Size: About 37 X 41mm 15. Size: About 152 X 55 X 33mm 16. Weight: 125g 17. Features: 18. Four Kinds Of Parameter Measurement, Ambient Temperature, Ambient Humidity, Dew Point Temperature, Wet Bulb Temperature, Can Display Two Lines Of Data At The Same Time 19. High-precision Temperature And Humidity Sensor, With Fast Sampling Rate And Update Speed 20. Upper Lower Limit Over-limit Reminder: When The Measurement Is Higher Or Lower Than The Set Threshold, There Will Be A Buzzer Alarm Sound And The Alarm Indicator Light Will Flash 21. High-definition Large-screen Display With White Background Light On The Display 22. Package List: 23. - Host X 1 24. - Cloth Bag X 1 25. - Protective Cover X 1 26. - Instructions X 1