Brand: Yongan
Model: YA-888-3
Price: CNY 120 / pcs
Min. Order: 10 pcs
Features:
* Excellent reliability & high stability.
* Self test function
* Visual and audible alarm function
* Low voltage warning
* Sensor-fault detection
* Can be connected with valve
* Hush function in alarm status
* Less affected by other organic solvent.
* Three-year limited warranty.
* Low power consumption
* Easy installation with a plastic bracket.

Specification:
* Power supply: AC220V/50~60Hz& 9v backup battery
* Sensor: Electrochemistry Co and semi-conductor Gas Sensor
* Static current: ≤40MA
* Alarm current: ≤80MA
* Static consume: ＜0.6 W
* Alarm consume: ＜2W
* Alarm volume: ≥85dB within 1 meter
* Operation Ambient Condition: 4~38℃, 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