loading
reading
writing
saving
searching
FS: System Sensor 2WT-B Photoelectric i3 Smoke Detector, 2-Wire - NEW! - $20 (los altos)
QR Code Link to This Post
Can be picked up in Los Altos or at Stanford
https://www.alarmsystemstore.com/collections/two-wire-smoke-detectors-system-sensor-dsc/products/system-sensor-2wt-b-two-wire-smoke-detector
The System Sensor 2WT-B is a 2-wire, photoelectric i3 smoke and heat detector.
System Sensor i3 series smoke detectors represent 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. Features:
Plug-in detector line, mounting base included
Large wire entry port
In-line terminals with SEMS screws
Mounts to octagonal and single-gang back boxes, 4-square back boxes, or direct to ceiling
Stop-Drop N Lock attachment to base
Removable detector cover and chamber
Built-in remote maintenance signaling
Drift compensation and smoothing algorithms
Simplified sensitivity measurement
Wide-angle, dual-color LED indication
Loop testing via EZ Walk feature
Built-in test switch
Technical Specifications:
Detection: 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)