System Sensor 4WT-B Smoke & Thermal - 4 Wire security Backset: 1-1/8"

Backset: 1-1/8"

parking garages

If there is an emergency

its IR feature offers clear visibility even in low-light conditions

Features at a Glance

System Sensor 4WT-B Smoke & Thermal - 4 Wire security Backset: 1-1/8"The 4WT B is a 4 wire, photoelectric i3 smoke detector with a 135F fixed thermal sensor. System Sensor 4WT B Smoke & Thermal Detector Alarm Contact Ratings: 0. 5 A @ 30V AC DC Alarm Current: 20mA max. @ 12V, 23mA @ 24V Detection: Photoelectric Dimensions: 2. 0" (51mm) H x 5. 3" (127mm) Dia. Freeze Trouble: 41F (5C) Heat Sensor: 135F (57. 2C) fixed Maximum Ripple Voltage: 30% of nominal (peak to peak) Operating Humidity Range: 0% to 95% RH, non