Product review (1 stars): The Honeywell website identifies this sensor as being compatible with ...
The Honeywell website identifies this sensor as being compatible with the Honeywell PCR426W Weather Forecaster.  This unit does not work with the PCR426W.  It is supposed to be the updated version of the TC13C sensor that goes with this particular Honeywell unit.  It is not and does not work with the Honeywell unit.  Not sure why.