Feature:1. Design with heavyduty permanent magnet motors, this motordriven alarm ensures years of reliable service and produces a loud sound for short duty cycles.2. The angle of the alarm can be adjusted vertically for flexible installation and accurate pointing of the sound to the position you want.3. The shell and mounting bracket produced by sturdy aluminum alloy and ABS resin for easy installation with a simple twowire connection.4. A variety of voltage specifications are available for all vehicles equipped with 12V system, suitable for transmitting signals in small lifts, transport vehicles, small ship machinery warehouses, etc.5. Can be used for sites requiring safety warnings, for example, construction sites, substations and factories, natural disasters, etc. device.6. High-quality pure copper motor, not easy to generate heat and damage, stable operation, long service life, and the rotation speed reaches 10,000 rev / sec.Specification:Item Type: Electric Motor AlarmMaterial: Aluminum Alloy ABS Resin Shell + Pure Copper MotorPower: 40WVoltage: DC12VSound Level: 120 dBFrequency: 420HzFunction: 180 can be rotated to adjust the directionFitment: Suitable for all 12V vehicles, trucks, fire trucks, RVs, trucks, pickups, motorcycles, yachts, etc., and can also be used as alarm horns for household use, etc..Package List:1 xElectric Motor Alarm