System Sensor's i3 Series photoelectric and photoelectric/thermal smoke detectors represent a significant advancement in conventional detection, incorporating three key features: installation ease, intelligence, and instant inspection.

Installation ease: The i3 Series redefines installation ease with its plug-in design. This allows an installer to pre-wire the bases included with the 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 backbox mounting methods, as well as direct mounting with drywall achors.

Intelligence: i3 Series detectors offer a number of intelligent features to simplify testing and maintenance. Drift compensation and smoothing algorithms to minimize nuisance alarms are standard in the i3 Series.

Instant Inspection: The i3 Series provides wide-angle red and green LED indicators for instant inspection of detector condition. The LEDs indicate: normal standby, out-of-sensitivity, alarm, or freeze trouble conditions. The "EZ Walk" loop test feature is availble on two wire i3 Series detectors when connected to the 2W-MOD loop test/maintenance module. The "EZ Walk" features verifies the initiating loop wiring by providing LED status indication at each detector.