The MSR-50 Series comes in two models of the controller: the MSR-50RM which provides a hidden magnet test switch and a push-button reset; the MSR-50RK provides a key-operated detector test and reset function. Both versions of the MSR-50 accessory are available as either a single gang remote indicator/control, or with the addition of a single gang strobe assembly. As controller-only or with the added strobe, all configurations are compatible with standard Decora style cover plates (choice of white, red or stainless steel).

• Tri-color visual indication of detector Pilot, Trouble and Alarm conditions
• Lever-operated quick-connect "No-Tools" four-position terminal block
• Port for plugging in the optional strobe assembly
• Key-operated detector Test and Reset functions (MSR-50RK model only)
• Magnet-operated detector Test function (MSR-50RM model only)
• Push button-operated detector reset function (MSR-50RM model only)