This practical hand crank alarm is made of durable alluminium alloy. It is easy to carry and has a long service life.
The portable siren hand crank weighs 1.1 kg, is comfortable to carry and easy to disassemble. It can trigger the alarm without helping by holding the handle. The operation is very simple.
The portable hand crank alarm requires no power source. By manually turning the handle, the gear gradually accelerates the gear to produce a sound. The size of the sound depends on the speed of the handle.
The hand crank alarm can produce a loud demodulation tone of 110 decibels that can warn in time. In case of power failure or traffic jams, the manual alarm plays a positive role.
Hand operated sirens can be used in factories, families, open barriers, mountain rescue, mines, levels, petrol stations, hotels, schools, flood protection, disaster relief and professional areas.
Size:
23 x 20 x 11cm
What's in the box
1 x DIY Safety Portable Manual Operated Sire For Fire Alarm(23cm)
