fire alarm bell 1.metal bell:iron base,aluminium base,plastic base 2.metal bell:100/150/200mm

fire alarm bell

FA-400  

fire alarm bell

specification:

1.base material:

a>iron base             

size:φ100mm/150mm

b>aluminium base   

size:φ150mm/200mm

2.operating voltage:dc24v/220v3.working current:≤25ma4.audio alarm:≥95db 

outdoor electric fire alarm bell