System Sensor 4WT-B Smoke & Thermal - 4 Wire pk5501 in a pocket

in a pocket

Includes one standard unsupervised surface sensor (W-S-U)

it's an investment that provides significant returns in terms of network reliability and efficiency

electrified deadlatch designed for easy integration with access control systems

Enlarged keypad buttons

System Sensor 4WT-B Smoke & Thermal - 4 Wire pk5501 in a pocketThe 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