Ozone Detector Rechargeable O3 Gas Concentration Tester Portable Handheld Item Type: Ozone Detector Tester Material: PC Uses: Suitable for toxic gas leakage rescue, underground pipelines, mines, metallurgy, power plants, chemicals, tunnels ,etc., to effectively prevent poisoning accidents, to ensure that the life safety of workers is not infringed, and production equipment is not lost Detection Gas: O3 Measurement Method: Electrochemical character/infrared/catalytic combustion/PID photoion/semiconductor/thermal conductivity etc. Detection Range: 0.0-10.0μmol/mol Indication Error: ≤±3%F.S Linearity: ≤±2 Repeat Value: ≤±2 Recovery Time: ≤30s Communication Method: USB (charging in communication) Response Time: Diffusion type≤60s Insulation Resistance: ≥20MΩ Alarm Function: Sound, light, vibration Working Environment: Temperature -10℃~50℃ Humidity: <95%RH, no condensation Charging Time: 6h-8h Standby Time: More than 8h continuous Number Name Description 1 Real-time value Display the current detection actual gas concentration value 2 Gas name Show gas name 3 Time Display the current time (manual adjustment) 4 Alarm As shown in the figure, the total alarm sound, light, and vibration are turned on (the buzzer alarm can be turned off separately), when ⊗ is displayed, it means the total alarm is turned off 5 USB socket After inserting the USB, this symbol is displayed 6 Shock The presence of this symbol indicates that the device is in vibration 7 Alarm The presence of this symbol indicates that the device is in alarm 8 Storage status The display port ■ means that the device is in the state of stopping storing data. When ▶ displayed, it means that the device is in the state of storing data 9 Buzzer As shown in the figure, the buzzer is normally enabled, and when the buzzer is disabled, it displays: when the alarm is off, the buzzer cannot be enabled 10 Power Display the current remaining power