1. High reliability catalytic combustion sensor  ,Gas &CO combination detector
2. LED display presents gas level
3. Backup battery function(can support 9V battery) , low battery warning
4. MCU processing
5. Auto-check malfunction
6. Auto-reset after alarm
8. SMT manufacture technology
9. Wall installation
10.It can work with Solenoid valve or Exhaust Fan

Technical specification:

module number	SR-912DVY
Operating voltage	AC100-240V
Gas species	Natural gas or LPG&CO
Sensor	Natural gas: Catalytic  type CO: Electrochemical
Drivable accessories	Solenoid valve or Exhaust Fan  (Please purchase separately)
Alarm level	Natural gas:5%LEL CO: 150PPM±50PPM
Aalarm output	Sound&LED flash alarm
Sound level	85dB/3m
Rated power	2.5W
Installation	Wall mounted
Working environment	-10℃~+50℃(≤95%RH No congelation)
Dimension	118.5*82*43mm