Hand Operated Siren for Emergency Use Manufacture Fire Fighting
Specifications:
| Style | Fixed |
| Sound pressure level | 110±2 dB(A) @ 1m |
| Audio frequency | 550±20 Hz (depending on the hand-shaking speed) |
| Material | aluminum alloy (in addition to the stand frame) |
| Net weight | 1.5 kg |
| Effective range | 1000 meters in diameter |
| Packing size | 186*186*170 mm |
