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

Carbon monoxide: 0-999 ppm

1. 7V 3500mAh Lithium Battery. Alarm settings: upper and lower limit alarm values/STEL alarm value/TWA alarm value. Zeroing and calibration: supported. Sensor principle: electrochemical, catalytic combustion. Power-on response time: 60 seconds. Operating current: 360 mA. Display:
2. 4-inch LCD backlit segment display. Charging interface: TYPE-C charging interface. Alarm method: triple alarm prompt (audio, visual, vibration) working time: 12 hours (with built-in pump operating, no alarm). Automatic Shutdown: Automatically shuts down after 10 minutes of inactivity. Excellent sensitivity and accuracy, short response time, precise and professional measurement. Built-in high-speed suction pump for faster and more complete gas absorption. Triple alarm with sound, light, and vibration: The instrument will provide a triple alarm indication with a buzzer, flashing light, and vibration. Supports charging function; can work for 12 hours without alarms. High-definition backlit large screen with adjustable brightness; clear reading even in dark environments, making measurement more convenient and faster. Sleep mode saves energy; the instrument will automatically shut down after 10 minutes of inactivity. Metal back clip design for easy carrying. Anti-slip design to prevent slippage and damage. Weight: 304g. Dimensions: 82x68x167mm. Sampling tube length: 282mm