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Compare documented specifications below. “Not specified” means the catalog has no value; it does not mean a feature or requirement is absent. Confirm system compatibility before choosing a replacement. On smaller screens, scroll the table horizontally.

Product specifications and system requirements
SpecificationT6 Pro TH6210U2001 Programmable Thermostat
BrandHoneywell Home
ModelTH6210U2001
SKU367408
Component roleStandalone
LifecycleCurrent
Building systemsNot specified
RequiresNot specified
Changeover modesAutomatic or manual
Contact ratingsControl circuits: 20–30 Vac
Dual transformer supportSupported for documented conventional 1H/1C wiring
Heating and cooling stagesHeat pump: 2 heat / 1 cool; Conventional: 1 heat / 1 cool
Keypad lockoutPartial/full options; menu enablement differs by hardware series
Power sourcesBattery or 24 Vac hardwired
Remote sensor supportC7089U and C7189U options not supported on TH6210U
Scheduling7-day, 5-1-1-day, 5-2-day or non-programmable
Setpoint limitsMinimum cool and maximum heat limits, configured by installer