Alarm way: sound and flash alarm

light indicator:green(flash when under warm-up state,always bright under working state)

alarm indicate: the red light flash

false indicate: yellow(it will flash when the sensor have any fault)

alarm state: the red light flash and the buzzer sound,output NO/NC signal (when the gas density been detected  is under the alarm point,the alarm return to inspect state

This product applies the singlechip control technology,can demarcate the density automatically,good consistencywith sensor false detection function