System Sensor 2W-B i3 Series 2-Wire Photoelectric Smoke Detector with Base, White

Designed for straightforward installation and simplified maintenance, this plug-in detector includes a mounting base that can be pre-wired before the detector head is attached. A large wire-entry port and in-line terminals provide room for organized wiring. The base supports compatible back-box or direct-to-ceiling mounting, and the head attaches with a simple Stop-Drop ’N Lock action.

Drift compensation and smoothing help reduce nuisance alarms. Wide-angle red and green LEDs indicate detector status, while built-in remote maintenance signaling and a test switch support inspection. Compatible 2-wire setups can use EZ Walk loop testing to check initiating-loop wiring.