Honeywell RF2 Wireless Pack 3
The RF2 Pack Three from Honeywell includes a two channel programmer with a DT92E wireless thermostat and a Wireless Cylinder Sensor. The programmer has the receiver for the wireless thermostats built-in so no extra installation of the receiver is required.
Ideal for systems with no thermostats or for new installations.
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: Y9420S2005