System Sensor PC4RL Indoor Selectable Output Horn Strobe HTRI-M (500-034000) Tamper-resistant construction with Plug-in design

Tamper-resistant construction with Plug-in design with minimal intrusion into the back box

System Sensor B224RB Intelligent Relay Base (Replaced by B224RB-IV)

the plug-in design simplifies installation and reduces costly ground faults

The SENS-RDR Sensitivity Reader is a tool to measure the sensitivity of i3 smoke detectors and 100 series conventional smoke detectors (only models 2151 and 2151T manufactured after April 2006)

System Sensor PC4RL Indoor Selectable Output Horn Strobe HTRI-M (500-034000) Tamper-resistant construction with Plug-in designSystem Sensor PC4RL L Series Indoor Selectable Output Horn Strobe, 4 Wire, Ceiling Mount, "FIRE" Marking, Red