Silent Knight SD505-6SB 6-inch Sounder Base 11/02 The Simplex 4098-9686 True Alarm

The Simplex 4098-9686 True Alarm Duct Smoke Detector features an air duct detector housing with clear cover and factory installed TrueAlarm photoelectric smoke detector

This Rate Compensated device combines the best features of both fixed temperature and rate-of-rise detectors

The XP95A Photoelectric Smoke Detector uses the light scatter principle to quickly and effectively detect a range of slow burning and smouldering fires

There is a dedicated LED on the module for each input and output

Silent Knight SD505-6SB 6-inch Sounder Base 11/02 The Simplex 4098-9686 True AlarmSilent Knight SD505 6SB 6 inch Sounder Base is designed for use with the IntelliKnight SD505 APS, SD505 AIS, or SD505 AHS addressable detectors. The SD505 6SB can be used as a single station, multi station or as a system sounder. Capable of Style 4 Style 6 or Style 7 (using SD500 LIMs) supervision without using a device address on the SLC loop.