Standard 456 Category : Standard After breaking the glass on the front of the pull station, the switch inside would be released. Brand StandardModel 456Manufacturer UnknownType Pull Station
System Sensor 2424 Category : System SensorThis smoke detector is sometimes referred to as the “doorknob” because of its doorknob-like appearance.
Space Age AV32+2DCD Category : Space Age ElectronicsThat is an electromechanical horn on the rear of the strobe plate.
