Wintact WT3652 Non-Contact Infrared Thermometer Temperature Measuring Machine 1. Three-color backlight heating reminder 2. Two measurement modes 3. Automatic shutdown after 20 seconds without operation 4. Heat alarm point can be set 5. Temperature correction 6. Store up to 32 sets of measurement data 7. With silent mode 8. Support switching between Celsius and Fahrenheit 9. This non-contact infrared thermometer determines the surface temperature of an object by measuring the infrared energy radiated from the surface of the object 10. Non-contact forehead electronic clinical thermometer, specially designed for human forehead temperature 11. Measuring range of body temperature: 32-43 degrees Celsius 12. Measuring range surface temperature: 0-100 degrees Celsius 13. Display accuracy: 0.1 degrees Celsius 14. Measuring distance: 1-10CM 15. Response time: 1 second 16. Response wavelength: 5-14um 17. Surface temperature emissivity: 0.99 18. Shutdown (sleep) time: 20s after no operation 19. Battery: DC 3V (AAA*2 battery) (battery not included) 20. Dimensions: 89.18x44.72x148mm 21. Weight: 110g