An alarm is an electronic product that reminds or warns us in the form of sound, light, air pressure, etc. that we should take certain actions to prevent the consequences of an event. Alarms are divided into motor alarms and electronic alarms. This blog will introduce motor alarms in detail. A motor alarm is a special alarm directly driven by an electric motor. It converts electrical energy into mechanical energy to make a loud sound. It is usually composed of a motor, a rotor, a circuit board, and a housing. ATO's motor alarm types include wind screw motor alarms, explosion-proof motor alarms, and motor driven siren alarms.