> Alarm indicator: Green led flash

> Manual test; Auto reset
> Detects natural gas, coal gas, LPG
> Highly stable semiconductor gas sensor
> SMT manufacture technology, high stability
> Adopts check malfunction
> High capacity relay (0.3A/250V)
> RF signal: 433MHz (wireless type)
> Execute criterion: GB15322.2-2003
> ABS plastic material
> Can work with solenoid valve, the fan (WL-938WL/938DL type)