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Power Supply : 3*1.5V AA batteries
* Sensor: Electrochemical CO sensor
* Alarm Style :Per EN50291
* Sensitivity/Alarm Time:
Within 60~90 minutes @ 50ppm CO concentration;
Within 10~40 minutes @ 100ppm CO concentration;
Within 3 minutes @ 300ppm CO concentration
* LCD Displayer(optional): 3 digits LCD displayer
* Audibility: 85dB ( at 1m distance ), Frequency 3±0.5KHZ
* Led Indication /Sound Pattern :
Standby: Green Led flashes once every 30 seconds
Alarm: Red Led quickly flashes 4 times with unit chirping every 5 seconds, then repeat,
* Low-bat Indicator :
Chirp every 30s as battery lower than 3.3V with green LED flashing and Lb on LCD
* Malfunction Indicator :Chirp every 30s with green LED out and Err on LCD
* Power consumption :0.3mW
* Sensor Life: 3 years
* Operation ambient: 0 ~ 40, 20% ~ 90%RH
* Mounting: Wall/Ceiling mounting
* Dimension 100mm*40mm, Weight: 0.2kg
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