Gas and CO combined Detector alarm RC412COM with 220VAC or 110VAC, 9V Battery Backup

Features:

* Excellent reliability & high stability.
* Durable sensor head
* Self test function
* Visual and audible alarm function
* Low voltage warning
* Sensor-fault detection
* Can be connected with valve
* Less affected by other organic solvent.
* Loud sound signal of 85 dB at alarm mode.
* Three-year limited warranty. 
* Low power consumption
* Test button to test the units electronics and verifies proper unit operation.
* Easy installation with a plastic bracket.
* Widely use for home, coal station, colliery, car and so on.
* Detect all sorts of combustible gases, such as coal gas, liquid petroleum gas and natural gas, carbon monoxide and monitor automatically.

Specification:

* Power supply: AC220V/110V ,9V DC, 50~60Hz
* Sensor: Electrochemistry Co and Gas
* Static current: lower and equal to 40MA
* Alarm current: lower and equal to 80MA
* Static consume: lower than 0.6 W
* Alarm consume: lower than 2W
* Alarm volume: higher and equal to 85dB within 1 meter
* Operation Ambient Condition: 4~38°C, 25~85%R.H.
* Alarm density:

Carbon monoxide:
50PPM: 60-90 minutes
100PPM: 10-40 minutes
300PPM: less than 3 minutes
400PPM: Immediately
Coal gas: 1000~5000ppm,
Liquid petroleum gas: 1000~5000ppm,
Natural gas: 1000ppm~5000ppm
*.Responding time: Gas ≤30S  
*.Alarm output: frequent on or off signal, control exhaust fan, electrical magnetic valve signal.