Hand Operated Crank Air Raid Safety Siren Fire Emergency Alarm
The hand siren is designed to provide effective alarm, alert or warning sounds in situations where there is no power supply. Powered by rotating the handle, the siren has a plate to shut off the sound once up to speed giving it the ability to produce three tones. It's foldable for easy storage and transportation and its heavy duty construction is suitable for even the harshest environments and it's bright red colour scheme is in line with other emergency equipment.
- Maximum Output: 110dB(A) at 1m
- Frequency: 550Hz
- Effective Range: 500m