Bidirectional Wind Screw Alarm MS-490/590/690/790/190 Electric Motor Air Defense Alarm Buzzer 220v Industry Security Electric Alarm Electric Motor Driven Siren Alarm Horn Buzzer

Bidirectional Wind Screw Alarm MS-490/590/690/790/190 Electric Motor Air Defense Alarm Buzzer 220v Industry Security Electric Alarm Electric Motor Driven Siren Alarm Horn Buzzer🔸 Product name: two-way motor wind screw alarm🔸 Model: MS-490🔸 Working voltage: AC220V🔸 Sound pressure level: 150 dB🔸 Material: Metal material🔸 Installation method: Screw fixed🔸 Product name: two-way motor wind screw alarm🔸 Product model: MS-590🔸 Working voltage: AC220V🔸 Sound pressure level: 160 dB🔸 Material: Metal material, die-cast shell🔸 Installation method: Screw fixed🔸 Voice form: continuous voice🔸 Product name: two-way motor wind screw alarm🔸 Model: MS-690🔸 Working voltage: AC220V🔸 Sound pressure level: 170 dB🔸 Material: Metal material, die-cast shell🔸 Installation method: Screw fixed🔸 Product name: two-way motor wind screw alarm🔸 Model: MS-790🔸 Working voltage: AC220V🔸 Sound pressure level: 180 dB🔸 Material: Metal material, die-cast shell🔸 Installation method: Screw fixed🔸 Product Name: Motor Wind Burglar Alarm🔸 Product Model: MS-190🔸 Product Material: Metal Shell🔸 Sound Pressure Level: 100 - 120 Decibels🔸 Installation Method: Screw FixationWidely used:For civil defense and civil defense alarm systems; Alarm systems for mines, explosions, prisons, reservoirs, power stations, substations, airports, police stations, military bases, etc.; Earthquake, tsunami, flood, flood control and relief, debris flow, landslide, typhoon, fire, minefield, forest fire and other natural disaster alarm; Fire or emergency alarm systems for factories, schools, docks, warehouses, public buildings, commercial areas, residential areas, ports, etc.Features:✅ has strong penetration✅ high speed rotation✅ Rust and corrosion prevention✅ all copper wire wound✅ waterproof and moisture-proof✅ There was a quick responseFeatures:🌟 motor alarm after heat treatment processing, moisture-proof, corrosion resistance, no stuck, no touch, no deformation. It has the function of wind and sand prevention.🌟 Fast start, stable operation, large sound source, strong penetrating power, wide sound coverage