Overview of System Sensor 2WT-B

The System Sensor 2WT-B Photoelectric i3 Smoke Detector is a reliable and easy-to-install 2-wire smoke and heat detector. This detector utilizes a photoelectric detection method and a 135F fixed thermal sensor to provide accurate detection of smoke and heat. With its plug-in design and large wire entry port, it is easy to install and wire neatly, while the base accommodates various mounting methods. The i3 line also offers intelligent features such as drift compensation and smoothing algorithms, which minimize nuisance alarms and simplify testing and maintenance. The wide-angle red and green LED indicators provide instant inspection of the detector's condition, including normal standby, out-of-sensitivity, alarm, or freeze trouble. The System Sensor 2WT-B is compatible with the 2W-MOD2 loop test/maintenance module or a panel with the i3 protocol, providing additional features such as remote LED indication of maintenance signals and EZ Walk loop test feature. With its technical specifications, this smoke detector is a reliable and convenient option for both commercial and residential buildings.

Technical Specifications of System Sensor 2WT-B:

Detection Method: Photoelectric
Wiring: 2-wire
Heat Sensor: 135F (57.2C) fixed
Operating Voltage: 12/24 V non-polarized nominal, 8.5 min. to 35 max.
Maximum Ripple Voltage: 30% of nominal (peak to peak)
Alarm Current: 130mA max., limited by panel
Standby Current: 50 A max. avg., 100 A peak
Operating Temperature Range: 32 to 100F (0 to 37.8C)
Operating Humidity Range: 0% to 95% RH, noncondensing
Freeze Trouble: 41F (5C)
Sensitivity: 2.5%/ft. nominal
Wiring Gauge: 14-22 AWG
Dimensions: 2.0" (51mm) H x 5.3" (127mm) Dia.
Weight: 6.3 oz. (178 g)