Siemens Milltronics Motion Sensing Siemens motion sensing controller and sensor combinations are used to detect changes in operation, such as motion an speed that could lead to costly malfunctions and failure. The MFA 4p controller on detection of a problem can send a signal via contacts to shut down machinery to prevent further damage or losses. Single set-point operation makes these units suitable for a variety of industries including, water and waste water. Requires a motion sensor 8044102 and sensor controller 8044086 for operation Probe can be mounted up to 100mm from target Selectable over-speed or under-speed detection Start-up time delay Temperature rating: -40°C to +60°C IP67 rated (probe) NEMA 4X, polycarbonate enclosure (alarm controller) Aluminium Body (probe) Siemens Flow / Motion Sensing