The RF2 Pack Two from Honeywell includes a two channel programmer with a DT92E wireless thermostat. The programmer has the receiver for the wireless thermostat built-in so no extra installation of the receiver is required.
Ideal for systems with no thermostat.
The ST9420 programmer / receiver will replace any of the following with no change to backplate or wiring:
Honeywell ST712A ST722A ST772 ST6300A C21 C27 ST6200A ST6400A ST6450B ST6400C ST9400A ST9400C
Honeywell part number: Y9420H1008