The FP975 full programmer offers a direct plug in replacement to the Danfoss MK9 range (types 922 and 972), the Danfoss SET5, or any other timeswitch or programmer based on the British Gas standard wallplate. The FP975 is supplied complete with SET wallplates but is designed to also mount directly onto existing MK9 wallplates without the need for wiring changes. Each unit which when supplied is configured as a SET replacement, can be reconfigured as a MK9 replacement by means of a switch on the rear of the unit.