System Sensor 2WT-B i3 Series 2-Wire Photoelectric Smoke and Heat Detector, 135°F Fixed Temperature, White

The 2-wire photoelectric smoke and heat detector is designed for conventional fire detection, with a fixed-temperature heat sensor rated at 135°F. Its plug-in design and included mounting base support straightforward installation, while the Stop-Drop ’N Lock attachment helps secure the detector head to the base.

A large wire-entry port and in-line terminals provide room for wiring. The base can mount to octagonal, single-gang, or 4-square back boxes, or directly to the ceiling. A removable cover and chamber simplify access for maintenance.

Drift compensation and smoothing algorithms help reduce nuisance alarms. Dual-color, wide-angle LEDs indicate detector status, and built-in remote maintenance signaling supports compatible systems. Simplified sensitivity measurement is available with a compatible reader.

What’s included:
• Smoke and heat detector
• Mounting base