110dB Hand Crank Air Raid Siren Medium Green Aluminium Alloy Folding Handle For Sale

MYFULLY Handheld Air Raid Siren | Hand Loud Crank Operated 110DB Air Raid Siren

Our handheld air raid siren is made of aluminum alloy material, coated with anti-rust paint, more durable and wear-resistant.

This lever allows you to adjust the intensity of the sound.

• No power support
• By manually rotating the handle, the gearbox of the transmission step by step acceleration to achieve the purpose of sound.

The handle and lever folds for easy carrying on the included waist pack.

• Aluminium Alloy Material: Made out of durable aluminium alloy.The handle and lever folds for easy carrying on the included waist pack.
• 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.