Conventional
Conventional Spot Detectors
Conventional spot detection is the backbone of small and mid-size fire alarm systems: detectors that mount on the ceiling, protect the area around them, and report to a conventional panel as a zone rather than an address. The i3 series photoelectric smoke detectors lead this section in 2-wire and 4-wire versions, plain or with a 135 F fixed thermal sensor, an integral sounder, a Form C relay, or combinations of those, and the 5600 series mechanical heat detectors cover fixed-temperature and rate-of-rise sensing at 135 F and 194 F in single- and dual-circuit models for areas where smoke detection is impractical.
Supporting the heads are the 5151 plug-in electronic heat detector and 2151T low-profile photoelectric detector for the 100 Series base platform, 2-wire and 4-wire detector bases with relay and resistor options, and installation accessories such as the A77-AB2 retrofit adapter bracket, SMB600 surface mounting kit, and XR2 pole-mounted installation and removal tool. All i3 detectors use drift compensation and smoothing algorithms to cut nuisance alarms and plug into their base with a simple Stop-Drop-N-Lock motion.
Browse smoke detectors, heat detectors, bases, and accessories here, add sounder control and loop testing with modules, or browse the full System Sensor catalog. Contact our team to confirm panel compatibility and spacing.