Scope of application: suitable for residences, offices, factories, shops, factories, public places, etc. It can be installed in various places in corridors, windows or other corners. Alarm design: The wind screw alarm is driven by a motor to emit a sound, so that the electric drill makes a sound. The alarm sounded enough to scare away the thief. Easy to install: fixed base installation, the air outlet can be adjusted up and down, and can be directly connected to the alarm system. alarm security. Working voltage: 220V, the noise level is 110dB. High quality: use high quality materials, stable working performance, real high quality and brand new heavy duty. High and low temperature resistance, very durable. Color: Black Size: as shown Material: metal shell Power: 40w Protection class IP44 Reminder: continuous use should not exceed three minutes, otherwise the motor will be easily damaged, and the motor will be reused after the engine will have reached normal temperature. Quantity delivered: 1 piece