Air Products & Controls MSR-50RK/R 04/02 which operate as a SPDT

which operate as a SPDT switch

Beam/Pillar

tamper and trouble states

and an accompanying outdoor backbox

single or double action devices which initiate an alarm when pulled

Air Products & Controls MSR-50RK/R 04/02 which operate as a SPDTThe MSR 50R Series remote accessories are designed for use with Air Products and Controls duct smoke detectors to provide the range of functionality required by your local commercial application. The MSR 50R Series comes in two models of the controller: the MSR 50RM which provides a hidden magnet test switch and a pushbutton reset; the MSR50RK provides a key operated detector test and reset function. Both versions of the MSR 50R accessory are