Check the listing for details. System Sensor 2WT-B Photoelectric Smoke Detector. Color: White, Condition: New. Listed at 64.00 USD. Product OverviewThe System Sensor 2WT-B is a 2-wire, photoelectric i3 smoke and heat detector. System Sensor i3 series smoke detectors represent a significant advancement in conventional detection. The i3 family is founded on three principles: installation ease, intelligence, and instant inspection.The i3 line redefines installation ease with its plug-in design. This allows an installer to pre-wire bases (included with heads). The large wire entry port and in-line terminals provide ample room for neatly routing the wiring inside the base. The base accommodates a variety of back box mounting methods as well as direct mounting with drywall anchors. To complete the installation, i3 heads plug into the base with a simple Stop-Drop ‘N Lock action.i3 detectors offer a number of intelligent features to simplify testing and maintenance. Drift compensation and smoothing algorithms are standard with the i3 line to minimize nuisance alarms. 2-wire i3 detectors can generate a remote LED indicated maintenance signal when connected to the 2W-MOD2 loop test/maintenance module or a panel equipped with the i3 protocol. The SENS-RDR, a wireless device, displays the sensitivity of i3 detectors in terms of percent-per-foot obscuration.The i3 series provides wide-angle red and green LED indicators for instant inspection of the detector’s condition: normal standby, out-of-sensitivity, alarm, or freeze trouble. When connected to the 2W-MOD2 loop test/maintenance module or a panel with the i3 protocol, the EZ Walk loop test feature is available on 2-wire i3 detectors. This feature verifies the initiating loop wiring by providing LED status indication at each detector. 0">Main FeaturesPlug-in detector line, mounting base includedLarge wire entry portIn-line terminals with SEMS screwsMounts to octagonal and single-gang back boxes, 4-square back boxes, or direct to ceilingStop-Drop ’N Lock attachment to baseRemovable detector cover and chamberBuilt-in remote maintenance signalingDrift compensation and smoothing algorithmsSimplified sensitivity measurementWide-angle, dual-color LED indicationGeneral InformationName: System Sensor 2WT-B Photoelectric i3 Series Smoke and Heat Detector, 2-Wire, 135F Fixed Thermal Sensor, White, Honeywell International, Inc, System SensorCategory: System Sensor, Fire, Intrusion, Fire Detection Devices, Life Safety Devices, Smoke & Heat Detectors, Smoke & Heat DetectorsUPC Code: 783863017605Country of Origin: Mexico. Country of origin is subject to change.