Hand-cranked horn, portable siren, 110dB, manually operated metal alarm, emergency security alarm, Air Raid

General Description

The transmission gearbox emits a sound when the handle is manually turned. The alert tone varies according to the rotation speed, providing a timely warning to reduce property damage. It is ideal for use in various environments such as factories, homes, schools, as well as for flood control and disaster relief. Its lightweight design allows for easy transport.

Technical Specifications

• Material: Durable aluminum alloy
• Strength: Strong and wear-resistant

Compatibility and Accessories

• Use in industrial environments
• Suitable for emergency situations and public alerts

Installation

Easy to install; simply attach the gearbox to the desired location and ensure easy access to the handle.

Use

Turn the handle to emit an alert sound; adjust the speed to change the tone. Ideal for emergency signals and alerts in various contexts.