1、 Main functions and specifications:
1. Temperature measurement range: forehead: 32-43 ℃, surface temperature: 0-60 ℃
2. Measurement accuracy: ± 0.2C
3. Measurement time: ≤ 1 second
4. Measuring distance: 1-10cm
5. Measurement method: infrared measurement
6. Emissivity: 0.95
7. Infrared wavelength: 5-14um
8. Key: on / off / memory, start
9. Function: high temperature alarm, memory temperature 10 times
10. Composition: it is composed of thermopile infrared sensor, micro processing memory, liquid crystal display and external panel
11. Scope of application: display the body temperature of the tested object by measuring the forehead thermal radiation
12. It can measure ear temperature and forehead temperature, and can be used in high temperature environment (up to 48 ℃)
13. Low voltage prompt function
14. No operation, 60 seconds automatic shutdown, more power saving;
2、 Working principle of forehead temperature gun
Using the feature that all objects above zero will emit infrared, the infrared special sensor is used to collect the infrared emitted by the object, which is transformed into weak voltage signal of UV ~ mv level. After nearly 100 times voltage amplification, it enters the high-precision and high-resolution AD converter. The digital signal is processed by the single-chip microcomputer, and the actual temperature is obtained Interface expression: LCD display or voice count, or through data transmission to the computer for centralized processing.