Display typeDigital
Voltage20-30V AC
Depth1.187"
Power methodBattery
Temp. settings per day4.0
Temp. control range+45°F to +90°F
Batteries includedYes
Control range+45°F to +90°F
Remote sensing capabilityNo
ColorWhite
Key pad lockoutNo
Battery backupYes
Display colorGreen
Stages heat1
Overall depth1 1/8"
Overall height5 5/16"
Overall width3 3/16"
Control typePush Button
Digit sizeStandard
Filter change reminderNo
IncludesMounting Hardware
Includes positive offYes
Mounting directionVertical
Temperature readoutYes
Contact rating20-30V AC
Number of zones1
Temperature settings per day4
Number of cooling stages - conventional system1
Number of cooling stages - heat pump system1
Number of heating stages - conventional system1
Number of heating stages - heat pump system1
Differential cool1.2°F
Fan settingsAuto-On
Key featuresFossil Fuel, Electric Compatible
Mounting locationMark, Wall
Programming capability5-2
Stages conventional1 H/1 C Conventional
Stages heat pump1 H/1 C Heat Pump
Stages heating/cooling1 H/1 C Conventional, 1 H/1 C Heat Pump
System settingsCool Heat Off
Terminal designationsB, G, O, Rc, Rh, W, Y
Temperature scaleFahrenheit, Celsius
ApplicationHeat And Cool
Backlit screenYes
Backlit screen colorGreen
Backlit typeTouch Activated
Battery type(2) AAA Batteries
Changeover typeManual
Compatible system typeElectric Forced Air Furnaces, Gas Forced Air Furnaces, Hydronic Systems, Millivolt
Dehumidification controlNo
Differential typeAdjustable
Dual transformer compatibleYes
Electrical connection typeHardwired
Housing colorWhite
Humidification controlNo
Low battery indicatorYes
Millivolt compatibleYes
ShapeRectangle
Smart connectivityNo Connectivity
Temperature limitingNo
Temporary program overrideYes
Temporary temperature holdYes
Thermostat typeLow Voltage
Maximum control temperature99°F
Maximum operating humidity90%
Maximum operating temperature105°F
Minimum control temperature45°F
Minimum operating humidity0%
Minimum operating temperature32°F
Series1E78 Series