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Brand New.
The new 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: Y9420S1005
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