System Sensor 4WTR-B 4-wire Smoke Detector w/ Relay
$100.00
The System Sensor 4WTR-B 4-wire Smoke Detector featuring 135F Thermal Sensor and Form C Relay is part of the i3 series of sensors from System Sensor.
Mounting Base (included) mounts to 3½-inch octagonal back box, 4-inch octagonal back box, single-gang back box, 4-inch square
back box with a plaster ring, direct mount to ceiling
COMPATIBLE ACCESSORIES
— RRS-MOD Reversing relay/synchronization module
— 2W-MOD2 2-wire loop test/maintenance module
— SENS-RDR Sensitivity reader
— RT Removal/replacement tool
— A77-AB2 Retrofit adapter bracket
