1.conform to EN50291
2.Alarm sensitivity:100+-50ppm
3.Sensor:semiconductor CO sensor
4.alasrm sound:>85DB

·Power:  AC110~240V/50Hz,60Hz
·Alarm volume :  ≥85db(A) at 1m
·CO alarm pattern:  BI 0.5s--pause 0.5s, with

corresponding red LED flash. repeat this pattern
·Self-detection function
·Operating Temperature : 0°C ~ 50°C
·Ambient Humidity : 10%~ 90% RH
·Sensor: semiconductor CO sensor
·Test/Reset Button
·Power Consumption : ≤4 W
·Type of gas be detected : Carbon monoxide
·Alarm sensitivity: 100±50ppm
·Quomodo of power supply input: AC plug pin  
·Packing Packing size:130mm x 70mm x 80mm 
·Weight:0.35kg