T8400 Honeywell Large Display Thermostat

T8400 Honeywell Large Display Thermostat
T8400 Honeywell Digital Thermostat - Single-Stage Heating & Cooling Thermostat

Regulating your indoor environment has never been easier! The T8400 electronic digital thermostat provides nonprogrammable control for 24-V heating and cooling systems. The large digital display is easy to read and indicates temperature in either Fahrenheit or Celsius. Keys are conveniently located beside the display, but the ?Fan? and ?System? switches are placed at the thermostat?s lower edge to prevent accidental setting changes. The T8400 requires no batteries for setting retention; it stores setpoints in permanent memory for retention even in the event of a power failure.

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Product Availability: Usually ships same business day
List Price: $67.95
Our Price: $47.95

Universal Lock Box None (+0.00) Lock Box (+22.95)

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Strategic switch placement prevents accidental setting changes
Large digital display is easy to read
Permanent memory retains settings during a power failure


Attractive styling complements any decor
Large digital display for quick, easy readability
Conveniently sized 3 1/2" x 3-1/2" thermostat with optional decorator cover plates (3 7/8" x 3 7/8" and 5 3/4" x 5 3/4")
Keys are located for easy access
"Fan" and "System" switches are located on the lower edge of the thermostat to prevent accidental setting changes
Manual changeover from heat to cool prevents unexpected system operation
Fahrenheit or Celsius temperature display
No batteries required
Digital thermostat setpoints are permanently stored in memory and retained during power failure
Power-saving models available for virtually all equipment and application needs, including gas, oil and electric forced air, condensing gas furnaces, hydronic heat, gravity and radiant floor heat systems