Brief introduction and advantages and disadvantages of door thermometer
1. The door thermometer is an infrared thermometer (spot temperature type) installed on the door, plus a display device. The only way to measure non-contact temperature is infrared temperature measurement.
2. The working method of the door-type thermometer: when each person passes through the system, stop with his face facing the measuring hole for 1 second. It is required that the face should not be farther than 50cm away from the measuring hole. The display will display the actual temperature value. If it exceeds the setting temperature, the alarm will activate
3. Advantages and disadvantages of door thermometer:
Advantages: It can save the manpower of a tester, but still needs a person to supervise and guide the temperature measurement. (For example, it must be ensured that the forehead of the person being tested is aligned with the temperature measurement point on the door, and there must be no hair or accessories covering it, otherwise the temperature measurement will be inaccurate. This method of temperature measurement takes longer than that of a handheld thermometer. It is useless to decrease, but may increase.)
shortcoming:
1> The laser pointer must be turned off, otherwise it is easy to damage the eyes of the tester; but this will inevitably make it impossible to determine whether the test is forehead temperature. Only the forehead temperature of the human face is closest to the body temperature test requirements. The temperature of other parts varies greatly from person to person, and the temperature measurement is very inaccurate.
2> The height of each person is different, which will inevitably make it impossible for each tester to perform the forehead temperature test in the most suitable position. The correct way to measure infrared temperature is to test the center of the forehead with an infrared temperature measuring gun, with a distance of 3~5 cm!
3> The actual cost price of the portal thermometer will not exceed 2,000 yuan. If the sales price is too high, it is purely a gimmick and is very unreasonable.
