Features:Built with heavy-duty permanent magnet motors, this motor-driven alarm ensures years of reliable service and produces a loud sound for short duty cycles.The angle of the alarm can be adjusted vertically for flexible installation and accurate pointing of the sound to the position you want.The housing and mounting bracket are made of sturdy metal plus ABS resin for easy installation with a simple two-wire connection.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.Specifications:Condition: Brand NewMaterial: Metal + ABSColor: GrayPower: 40WSound level: 120 dBInsulation resistance : 100 M (at 500V DC)Package List:1 * Electric Motor Alarm .