Hand Crank Siren, Loud Heavy Duty Tornado Siren with Pedestal/Countertop Mount, Fire and Air Raid Siren, Air Horns for Warning Buildings （weight 15.4 lbs (7 kg)）
✅ STURDY AND DURABLE: Made of aluminium alloy and coated with anti-rust paint, it is more sturdy and wear-resistant, anticorrosive and waterproof, easy to carry and durable.
✅ LOUD ALARM: Volume up to 122 decibels, sound propagation diameter of 1.86 miles (3,000 metres), the sound is sharp, penetrating and noisy, which can quickly attract people's attention to achieve the ideal alarm effect.
✅ EMERGENCY WARNING: A must-have for emergencies in any place, effective and timely early warning to reduce personnel and property losses and casualties, manually operated, no installation required.
✅ VOLUME ADJUSTABLE: The volume depends on the speed of the handle rotation, the faster the speed, the louder the sound. In addition, pressing the trigger can open the blades and the loud sound will come out. No power supply is required, just shake the handle to power the handheld siren.
✅WIDE APPLICATION: Widely used in factories, homes, schools, oil depots, warehouses, flood control, disaster relief, public and industrial occasions, it can be used to alert the police in time in emergencies to reduce casualties and property losses.
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