SMT manufacturing process
Low standby current
Anti-electromagnetic interference and radio frequency interference 
Lights visible from 360 °
Power input polarity
Advanced design
Long Life electro-chemical sensor
Excellent reliability & high accuracy
Self test on the sensor and self diagnostics on the electronics
Easy installation
Test / Reset Button
Low battery warning
Cannot be fitted with battery missing
Supplied with fixing kits
9VDC Alkaline battery included.
Power supply: DC9V battery/ DC9-18V Wired (Wired / Standalone optional)
Static current: ≤50uA (9V battery).
Alarm current: ≤50mA(9V battery).
Alarm Density:
        300PPM make alarms within 3 minutes.
        100PPM make alarms 10-40minutes.
        50PPM make alarms 60-90 minutes.
        30PPM make alarms in 120minutes.
Alarm sound: more than 85dB(1meter).
Battery life:1 year at least.
Green LED: normal supervisor (every 30s).
Red LED: for Alarm.
Yellow LED: for fault .
Low power alarm:≤6.8V(Green LED flashes, also make alarms).
Working temperature: -10℃ ~ 50℃.
Ambient humidity: 10%-90% RH