MYFULLY Handheld Air Raid Siren | Hand Loud Crank Operated 110DB Air Raid Siren Home Self Protection Security Alarm Siren Aluminum Alloy Crank

Price: $40.95
(as of Feb 14, 2023 02:24:28 UTC – Details)

Specifications: dB(A)1m 110±2. Rate HZ 550±20（Depending on the hand speed. Transmission distance Φ 1000M.
Easy To Use: By manually rotating the handle, the gearbox of the transmission step by step acceleration to achieve the purpose of sound, the sound depends on the rotation speed of the handle.
Wide Application: Can be used for factories, families, schools, military units, flood control, disaster relief, forest fire fighting munitions, public and industrial occasions
Portable: No power support, compact structure, easy to carry, a wide range of applications, such as the advantages of long life.