Simplex 4098-9685 2-Wire Duct Detector 23/01 mount behind the closet cabinet

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

battery leads

nonpower limited rating of 0

If you want to change the address

Simplex 4098-9685 2-Wire Duct Detector 23/01 mount behind the closet cabinetThe 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