Simplex 4098-9685 2-Wire Duct Detector 23/01 this tube draws air evenly

this tube draws air evenly across the duct’s entire width and directs it into the detector’s sensing chamber

This feature verifies the initiating loop wiring by providing LED status indication at each detector

The automatic fire detectors of the AVENAR detector 4000 series feature a superb accuracy and swiftness in detection

mount behind the closet cabinet door and are not visible with the door closed

Simplex 4098-9685 2-Wire Duct Detector 23/01 this tube draws air evenlyThe Simplex 4098 9685 is a two wire TrueAlarm duct detector housing (no relay) for basic smoke detection in HVAC ducts. It operates on IDC (1832 VDC) and uses sampling tubes sized to the duct width, ordered separately. Key Specifications: Type: 2 wire duct smoke detector housing with TrueAlarm photoelectric head; no remote relay Power: 1832 VDC from the initiating device circuit (IDC) Status Testing: Multi function LED (normal alarm); magnetic test