Honeywell THX9421R5013


Prestige HD Thermostat, 4 Heat, 2 Cool

THX9421R5013 1578565
Average Rating: 4
Read Reviews (1) Write a Review
$187.79 + 8-10 Business Day Shipping $7.71
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ItemPrestige Thermostat
TypeRedLink Wireless
Stages Heat4
Stages Cool2
Temp. Settings per Day4
Programs per Week7
Terminal DesignationsR, C
System SwitchingAuto or Manual
Fan SwitchingAuto, On, Off, Circulate
DisplayHigh Definition Digital
Key Pad LockoutYes
Programmable FanYes
Automatic ChangeoverYes
Humidification ControlYes
Dehumidification ControlYes
Remote Sensing CapabilityYes
Temporary Program OverrideYes
Temporary Temperature HoldYes
Filter IndicatorYes
Temperature LimitingYes
Battery BackupYes
Low Battery IndicatorYes
Batteries IncludedYes
Dual Transformer CompatibleYes
Power MethodHardwired
Voltage (AC)24
Height (In.)3-5/16
Width (In.)6-7/8
Depth (In.)1-1/2
ColorPremier White
Control Range (F)32 to 120
Weight 1.200000


Wireless Thermostat Kits and AccessoriesThermostatsNos. 6FFX1 and 6FFX2 can be used with PTAC, PTHP, and fan coils.

Prestige Thermostat, RedLink Wireless, Stages Heat 4, Stages Cool 2, Temp. Settings per Day 4, Programs per Week 7, Terminal Designations R, C, System Switching Auto or Manual, Fan Switching Auto, On, Off, Circulate, Display High Definition Digital, Key Pad Lockout, Programmable Fan, Automatic Changeover, Power Method Hardwired, Voltage (AC) 24, Control Range (F) 32 to 120

Customer Reviews

Average Product Rating: 4
based on 1 reviews

Nice unit, but DrillSpot didn't tell me about the other required parts

Thursday, October 25, 2012

The product is very nice.... however, be aware that you still need the EIM (Electronic Interface Module), which connects between the Thermostat and the Furnace/devices..... as well as the RedLink Router in order to connect all pieces/sensors together. Since was upgrading from a lower Honeywell model, which had all these components wrapped inside one unit. Having to purchase these other 2 pieces bumped up my price 2 fold from the original price. Overall everything turned out nice and connected on the first attempt.

I like the ease of installation and the colorful screen output.

A tad bit more information on the installation of the EIM and options while in the initial setup.

Submitted by Benjamin P
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