System Sensor 4WTAR-B Smoke DetectorThe System Sensor 4WTAR B is a Photoelectric i3 Smoke Detector, 4 Wire, Thermal Sensor, Built In Sounder, and Form C Relay.

It provides 135°F (57°C) fixed-temperature heat detection using advanced thermistor sensing technology in a low-profile housing

open areas with high ceilings

2-wire i3 detectors can generate a remote maintenance signal when in a maintenance or freeze trouble condition

223 μA standby

Dimensions: 5 1/8” H x 5” W

TrueAlert ES addressable multi-tone A/Vs are individually addressed audible/visible notification appliances that receive power

It pairs optical smoke sensing with rate-of-rise heat plus a fixed 135 °F threshold to cover slow smoldering and fast flaming fires

The Edwards EST 4-2ANN LCD Annunciator comes with 4-LCDANN color touchscreen display

a green power-on LED

SmartSync 2-wire circuit

ceiling-mount strobe with selectable strobe settings of 15

System Sensor L-Series can meet virtually any application requirement