Product performance of infrared thermometer:
Accuracy: Measurement deviation ≤±0. 2oC
Speed: Measurement time 1 second
Easy to use: One-click measurement, easy to operate
Non-contact: For forehead measurement, do not touch thehuman skin, avoid cross-sense
Fever alarm: Free to set alarm temperature
Number of use: Button 100,000 times
Large screen display: Large screen LCD white backlightdisplay, can read clearly at night
Storage data: Store 100 measurement data for easy analysisand comparison.
Setup modification: Settings parameters can be modified
Unit conversion:oC,oF can be converted to each other.
Accuracy is given at 23oC to 28oC (73oF to 82oF),less than 80%RH.
0.95 fixed value
Field of View:
Make sure that the target is larger than the unit's spot size. The smaller the target, the closer you should be to it. When accuracy is critical, make sure the target is at least twice as large as the spot size.
Packaging & Delivery
Digital Non Contact Forehead Infrared Thermometer The carton packaging
Can use infrared temperature gun cause cataract? Understand the principle of temperature gun
The working principle of infrared temperature gun is only the process of receiving infrared rays
Due to the need of epidemic control, temperature measurement is indispensable for entering and leaving communities, units, rail transit and other places. Infrared temperature gun frequently hit on the forehead, and there are various jokes on the Internet. At the same time, a "infrared temperature gun will cause eye damage" is also widely spread. According to the statement, because the eyeball contains more liquid and has a strong ability to absorb infrared rays, the use of an infrared thermometer may cause cataracts. But is it really the case?
Data show that all objects with temperature higher than absolute zero are emitting infrared radiation energy to the surrounding space. The size and wavelength distribution of the infrared radiation energy of an object are closely related to the surface temperature of the object. Therefore, the surface temperature of an object can be accurately measured by measuring the infrared energy radiated by the object itself, which is the principle on which the infrared radiation temperature measurement is based. Physics loving netizens said that, in short, the infrared thermometer can "collect infrared" and convert it into corresponding electrical signals. After the signal is calculated by amplifier and signal processing circuit, it changes into the temperature value of the measured object. Therefore, the working principle of the infrared thermometer gun is only the process of receiving infrared rays, and it has no function of launching outward.
In the interview, the reporter also noticed some questions from netizens, such as why he saw the red light emitted from the temperature gun when he was being measured?
The reporter learned that infrared is an electromagnetic wave with a wavelength between microwave and visible light, with a wavelength between 1 mm and 760 nm. It is a non visible light with a longer wavelength than red light, and the human eye cannot see infrared. The red light in the temperature measuring gun is only the guiding beam for aiming. It is a red LED light with strong clustering, not an infrared light. Of course, we should also avoid letting it directly enter or reflect into the human eye, so as not to cause eye discomfort.
What's the matter with the word "emissivity" printed on the packages of some infrared thermoguns?
Reporters in the online shopping platform to see, many infrared temperature gun introduction, there is indeed a "emissivity" this term. However, the "emissivity" here does not refer to the infrared emission, but refers to the infrared "emissivity" of the object under test. By adjusting the emissivity, the temperature of different objects can be measured as accurately as possible. For example, the emissivity of human skin is about 0.95, and that of aluminum is about 0.3.
Anti rumor platform reminds: using infrared temperature gun will not harm human body.