Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology

RDMCM
Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology
Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology
Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology
Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology
Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology
Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology
Hand siren aluminum housing siren hand crank Foldable alarm siren for the house surveillance technology

Product description
Brand new
Material: aluminum alloy
Red color
Dimensions (approx.):
Length: 115mm
Width: 202mm
Height: 9.1 "
Operation: hand lever operated
Sound output: 110 ± 2 (dB)
Audio frequency: 550 ± 20 (HZ)
Transmission distance: 1000 (Φm)
Handle and crank lever folds.
No power supply required.
Compact for portability.
Quantity: 1 piece
Delivery content:
1 x air alarm
1. 【The hand siren crank does not require a power supply】 ： Manual air raid siren with winch drive. Produces a loud demodulated sound of 110 decibels. By manually turning the handle, the gear will gradually accelerate the gear for sound purposes, and the sound will depend on the speed of the handle.
2. 【Compact and portable hand crank siren】 ： The handle and lever are folded for easy carrying over the supplied hip pouch. Made of durable aluminum alloy. Strong, widely recognized voice.
3. 【Great】 ： for getting people's attention or searching for your favorite team through sporting events and other apps.
4. 【This hand operated light siren produces 110 decibels】 ： This is a powerful, adjustable sound that draws attention to refugee camps and schools, and whether you are cheering or your favorite team at a local sports game. You need to listen to a valid warning.
5. 【By manually rotating the handle】 ： the gear of the gearbox step by step acceleration, in order to achieve the purpose of the sound, the sound depends on the speed of the handle.