Machine Control Receivers FMR 600 Heavy duty laser receiver, ideal for mounting onto construction machines. Strong built-in magnets for connection to machines and a clamp for levelling staffs. SET FMR 700-M/C A machine control receiver to improve the operating accuracy of your construction machinery. FMR 800-M/C SET Machine control receiver used with construction machinery to increase accuracy and boost productivity. For continuous tilt and height control. FRD 807 Remote Display Magnetic Support For connection to construction machinery.