SMART SENSOR 4 In 1 Oxygen/Hydrogen Sulfide/Carbon Monoxide Gas Detector(AR8900 English)

1. Carbon monoxide: 0-999 ppm
2. Hydrogen sulfide: 0-500 ppm
3. Oxygen: 0-30%VOL
4. Combustible gas: 0~100%LEL
5. Protection rating: IP65
6. Battery: built-in 3.7V 3500mAh Lithium Battery
7. Alarm settings: upper and lower limit alarm values/STEL alarm value/TWA alarm value
8. Zeroing and calibration: supported
9. Sensor principle: electrochemical, catalytic combustion
10. Power-on response time: 60 seconds
11. Operating current: 360 mA
12. Display: 2.4-inch LCD backlit segment display
13. Charging interface: TYPE-C charging interface
14. Alarm method: triple alarm prompt (audio, visual, vibration) working time: 12 hours (with built-in pump operating, no alarm)
15. Automatic Shutdown: Automatically shuts down after 10 minutes of inactivity.
16. Excellent sensitivity and accuracy, short response time, precise and professional measurement.
17. Built-in high-speed suction pump for faster and more complete gas absorption.
18. Triple alarm with sound, light, and vibration: The instrument will provide a triple alarm indication with a buzzer, flashing light, and vibration.
19. Supports charging function; can work for 12 hours without alarms.
20. High-definition backlit large screen with adjustable brightness; clear reading even in dark environments, making measurement more convenient and faster.
21. Sleep mode saves energy; the instrument will automatically shut down after 10 minutes of inactivity.
22. Metal back clip design for easy carrying.
23. Anti-slip design to prevent slippage and damage.
24. Weight: 304g
25. Dimensions: 82x68x167mm
26. Sampling tube length: 282mm