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Highlights
Quality
Even captures the current outside temp humidity on the patio with the optional honeywell thermometer gadget
We did and eight months later we are very happy customers
The thx9421r5021 works great and has a few more features than the old model
Im getting more from my central unit with the honeywell thermostat
Overview
- How are reviewers describing this item?
old, three, model, great and new. - Our engine has profiled the reviewer patterns and has determined that there may be deception involved.
- Our engine has determined that the review content quality is low.
- Our engine has analyzed and discovered that 68.6% of the reviews are reliable.
- This product had a total of 38 reviews as of our last analysis date on Mar 21 2022.
Helpful InsightsBETA
Posted by a reviewer on Amazon
Bought this to replace a 2009 honeywell prestige hd which didnt support fan or schedule control with the total connect comfort app it looks and works just like the old prestige albeit with some more options
Posted by a reviewer on Amazon
This thermostat requires a honeywell equipment interface module eim to connect it wirelessly to the furnace
Posted by a reviewer on Amazon
The model number for the eim is thm5421r1021
Posted by a reviewer on Amazon
Our thermostat broke on the coldest day if the year
Posted by a reviewer on Amazon
Local repairman didnt have any to replace the one we had
Posted by a reviewer on Amazon
Im getting more from my central unit with the honeywell thermostat
Posted by a reviewer on Amazon
I had to purchase a replacement thermostat due to breakage
Posted by a reviewer on Amazon
However as we went to add a dehumidifier to the house we found that it was too old of a model to support one more piece of equipment
Review Count History
Price History
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