The RTS-2 replaces the discontinued SSK451. It is not compatible with the discontinued DH100 or DH400 detectors
The RTS2 and RTS2-AOS multi-signaling accessories are designedto work with InnovairFlex 4-wire conventional duct smoke detectors.
These accessories include a key switch that can be used to selectone of two connected sensors to be tested, reset, or both by a pushbutton switch. They also enable sensitivity measurements usingthe SENS-RDR sensitivity reader (sold separately).
The AOS (Add-OnStrobe) is an optional accessory included with the RTS2-AOS model.