Edwards EST 3-12/S2Y SF 18/12 System Sensor 4WTAR-B Photoelectric i3

System Sensor 4WTAR-B Photoelectric i3 Series Smoke Detector

The isolator modules prevent failure of the entire bus when there is a short on the bus

Model 4090-9051 is an encapsulated package with wire leads

— DS7400Xi Control Panel

The detector’s on-board microprocessor measures and analyzes these signals separately with respect to a fourth element - Time

Edwards EST 3-12/S2Y SF 18/12 System Sensor 4WTAR-B Photoelectric i3The EST3 Control Display modules provide the emergency user with the simplest of interfaces, lights and switch control. The Control Display modules install over local rail modules. The local rail modules supply the power and drivers via a ribbon cable connection to the control display modules. The displays mount over any local rail module maximizing the flexibility of design layout. When a display module is required where no local rail module exists,