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Silent knight smoke alarm metal housing SD505-adh
SILENT KNIGHT SMOKE ALARM METAL HOUSING SD505-ADH
1 SILENT KNIGHT SMOKE DETECTOR METAL HOUSING. NEW. SD505-ADH
The SD505-ADH is designed to be used with Silent Knight's SD505-APS Photoelectric Smoke Detector and SD505-AIS Ionization Smoke Detector. Now there's even more power and flexibility available to the IntelliKnight family of products!
Checked with Silent Knight- the "older" adh will not support remote duct switch, and also does not
contain a relay to use to shut down air handler. They as I thought now call this the SD505DUCT. The
"new" item that replaced the AHD is now called the SD505ADHR which will support the remote duct switch
and contains a relay. Appears this change took place around 1999-2001.
