AR8100 Handheld O2 Meter Rechargeable Oxygen Detector for Outdoor Industry 100-240V

Features:1. Wide application: Widely used in factories, homes, offices, and public places, etc.
2. Easy to use: Large backlit LCD screen, which can be read in the dark, saving you effort.
3. Portable and lightweight: Portable monitor, used to detect O2 and temperature; the unit can be switched between °C and °F.
4. Accurate detection: Fast response to gas detector, with audible and visual alarm instructions.
5. (Absolutely closed environment, such as a hyperbaric oxygen chamber)>23.5% enriched oxygen 20.96% normal 19.5% minimum 15~19% reduces effectiveness, causing problems in the head, lungs, and circulatory system 10~12% Shortness of breath, loss of judgment, purple lips 8~10% Treatment failure, syncope, coma, pale face, nausea and vomiting 6~8% 8 minutes, low blood pressure, rapid heart rate, mouth breathing, rapid respiratory arrest 4~6% 40 seconds, seizures, respiratory arrest, death