WIND SCREW TYPE: The alarm emits sound by the motor driving the wind screw siren, which sounds an electric drill. HIGH/LOW TEMPERATURE RESISTANCE: The wind screw alarm wind motor features high temperature resistance and low temperature resistance SIMPLE INSTALLATION: With fixed base installation, you can adjust Tuyere up and down. HIGH QUALITY MATERIAL : The engine alarm adopts high quality material, which shows stable performance. SCOPE OF APPLICATION: The alarm can be used for factory, building or fault device. road. Product Description Features: The alarm produces a sound through the motor which drives the propeller-type siren, then sounds a electric drill. High temperature resistance, low temperature resistance. Easy to install: fixed base installation, nozzle can be adjusted up and down. Features Strong penetration Copper winding Small size Resistance to corrosion and aging Specification: Model Number: MS - 190 Working Voltage: 220V Light Source Type: Continuous Sound The red color Installation: fix the bottom screw Electricity flow: 50mA Voice size: 114dB Power: 25w Weight: about 400g / 14.1oz Package List: 1 x Motor Alarm High quality motors, speed of rotation, activation sensitivity and excellent alarm performance. Small form factor and small footprint for easy placement. Painted with rust-resistant red paint, carefully designed and designed to last longer.