Scope: 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 sound, so that the electric drill emits a his. The alarm rang 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 security system. Operating voltage: 220V, the sound level is 110dB. High quality: use high quality materials, stable working performance, real high quality and brand new heavy load. Resistance to high and low temperatures, 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 used again after the motor reaches normal temperature. Quantity delivered: 1 piece