SMART SENSOR 4 In 1 Explosion-Proof Space Gas Detector(AS8900A English)

1. Carbon monoxide: 0~999 ppm 2. Hydrogen sulfide: 0~100 ppm 3. Oxygen: 0~30% VOL 4. Combustible gas: 0~100% LEL 5. Alarm settings: upper and lower limit alarm values/STEL alarm value/TWA alarm value settings 6. Zeroing and calibration: yes 7. Time display/language: date and time display/(Chinese and English display) 8. Response time: 60 seconds 9. Operating voltage: 3.7V Lithium Battery 1200mAh 10. Display: 2.0-inch Color LCD Screen 11. Charging interface: USB DC 5V 12. Alarm method: triple alarm prompts (audio, visual, and vibration) 13. Operating time: 8 hours (6 hours with sampling pump); no alarms during operation 14. 15. The instrument will automatically shut down after 10 minutes of inactivity; sleep mode saves energy. 16. High-definition LCD color screen display ensures clear reading of measurement values ??even in dark environments, providing convenience and speed. 17. Connect the instrument to a computer via USB data cable to view measurement data in real time, perform measurement communication, print, import records, and export to spreadsheets. 18. When detecting a gas, the instrument will provide a buzzer, flashing light, and vibration alarm. High and low concentration alarm values ??can be set. 19. Weight: 200g 10. Dimensions: 114.5x64.4x44.5mm