> 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)

> Alarm output is NO, NC, level of output mode selectable

> Execute criterion: GB15322.2-2003

> ABS plastic material;

> Can work with solenoid valve, the fan (WL-938L type)