System Sensor 4W-B Smoke Detector 4-Wire back box System Sensor SPSWL L-Series Indoor

System Sensor SPSWL L-Series Indoor Speaker Strobe

Simplex 49AO-WWF TrueAlert ES Addressable Horn Appliance

Fire-Lite SD365 Addressable Photoelectric Smoke Detector LiteSpeed Only White Replaced by SS-PHOTO

while combination fixed/ rate-of-rise units are marked FX/ROR

The Simplex 4098-9754 TrueAlarm multi-sensor combines the established performances of a photoelectric smoke sensor with a fast-acting and accurate TrueAlarm thermal sensor to provide both features in a single sensor/base assembly

System Sensor 4W-B Smoke Detector 4-Wire back box System Sensor SPSWL L-Series IndoorSystem Sensor 4W B Photoelectric i3 Series Smoke Detector, 4 Wire, White