This instrument is a portable handheld household oxygen meter (oxygen analyzer). In addition to supporting household oxygen concentrators, it is also particularly suitable for the following environments:
1. The measurement of oxygen content in industrial and mining enterprise environments, ship cabins, tunnels, chemical industry, and fertilizer industry gases is very effective to avoid system explosions due to overoxygen in the production process and to prevent maintenance personnel from suffocating accidents in an oxygen-deficient environment. of.
2. Detect the oxygen content in the exhaust gas of the internal combustion engine and the oxygen content in the flue gas to achieve reasonable control of combustion and save fuel.
3. Measure oxygen content in controlled atmosphere storage of grains, fruits, vegetables, tobacco, Chinese herbal medicines, dried fruits, etc.
4. Analysis of oxygen content in ventilators, anesthesia machines, hyperbaric oxygen chamber infant incubators in the medical industry, as well as in aerospace and diving operations.
5. It is an indispensable experimental equipment for physics, chemistry, biology and other experiments in middle schools, colleges and universities, and medical schools.
6. Any place where oxygen content needs to be detected.

Specification:
1. Range: 0-100% 0-50% 0-1%
2. Accuracy: +/-0.10%
3. Operating environment temperature: -20~50 degrees Celsius
4. Humidity: less than 90%
5. Method of use: hand pinch and suction type
6. Resolution: 0.1%
7. Response time: 5 seconds
8. Power consumption: 4 milliwatts
9. Power supply: 6F229V laminated battery, can work for 500 hours. (battery not included)
10. Interfering gases that affect detection accuracy: SO2, NO2, and H2S will affect the measurement when they are greater than or equal to 10%.
11. Display reading: three-and-a-half-digit LCD display
12. Measurement method: diffusion type