Lowe's Home Improvement
FREE PARCEL SHIPPING on Qualifying Orders
Honeywell 5-1-1 Day Programmable Thermostat

Honeywell 5-1-1 Day Programmable Thermostat

Item #: 183786 |  Model #: RTH7400D1008

3.86 / 5 14 Reviews

5-1-1 Day Programmable Thermostat

  • Simple-to-use, -see, -program and install
  • Compatible with heating and cooling systems plus heat pumps; does not work with electric baseboard heat (120-240 volt)
  • Automatically changes from heat to cool and includes a filter change reminder
  • Precise temperature control of +/- 1°F
  • Backlit for easy viewing
  • Smart response technology continually adjusts the pre-heating and cooling of your home to keep you comfortable at your pre-programmed times
  • 1 program for the weekdays, and a separate for Saturday and Sunday with up to 4 program periods per day
Heating Only Yes
Cooling Only Yes
Program Type 5-1-1 day
Program Periods per Day 4
Auto System Change from Heat to Cool Yes
Touch Screen Programming No
Backlit Display Yes
Temperature Displayed Current and setpoint/desired temperature
High/Low Desired Temperature Limits No
Temporary Vacation Override No
Hold Temperature Button Yes
Early-Start Comfort Function Yes
Daylight Savings Time Ready Yes
Optional Battery-Free Operation Yes
Height (Inches) 3.75
Width (Inches) 5.75
Depth (Inches) 1.25
UL Safety Listing No
CSA Safety Listing No
Single-Stage Heating Yes
Single-Stage Cooling Yes
Multi-Stage Heating Yes
Multi-Stage Cooling Yes
Compatible with Heat Pump (No Aux.) Yes
Compatible with Heat Pump (No EM) Yes
Compatible with Heat Pump (With Aux.) Yes
Compatible with Heat Pump (With EM) Yes
Remote Control Included No
Built-In WiFi No
Use with Electric Baseboard 120V-240V No
Use with Pellet Stove for mV Thermostats No
Works with Iris No
Shape Rectangle
Compatible with Central Air Conditioning Yes
Compatible with Hot Water Yes
Compatible with Steam or Gravity Yes
Compatible with Warm Air Furnace Yes
Filter Monitor Yes
Use with Floor/Wall Furnace 24V or 750mV Yes
Use with Volt Gas Fireplace 24V or 750mV Yes

Product Documentation

Download these helpful files for this product.

  • Installation Guide
  • Operating Guide
  • Use & Care Guide

pdf To view these documents, you need Adobe Acrobat Reader. You can download a free copy from the Adobe web site.

Community Q&A
  • Save Item
    Save Item Help
    Save an item to your
    • Lists to collect ideas and plan future projects.
    • Home Profile to organize and store details about your home.
  • Set a Reminder Save Item Help

    Set a Reminder and we'll send you an email when it's time to stock up on items you buy regularly or seasonally, like air filters, fertilizer or mulch. Use notes to record details (quantity, gift recipient, etc.).

  • Go to Your Account