No need power supply
Durable ABS plastic housing
Very light weight
Powerful warning sound
Shutter mechanism to provide a choice of signals
Women and children can operate it very easily
Sound Rating: |
110±2dB(A) @1M |
Output Frequency: |
550±20Hz |
Single Tone |
Net Weight: |
0.6Kg |
Carton Size: |
15.5x15.5x16CM |
http://www.lkrescue.com/