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10 Best home thermostat accessories of 2026

Save up to 38% off
  • Best Choice

    1

    ecobee Smart Sensor 2 Pack - Comfort, Security, Energy Savings, Temperature and Occupancy Detection - Compatible with ecobee Thermostats for Home
    ecobee
    9.7
    Exceptional

    ecobee Smart Sensor 2 Pack - Comfort, Security, Energy Savings, Temperature and Occupancy Detection - Compatible with ecobee Thermostats for Home

    • color: White
    • pattern: Thermostat
    • batteries included: Yes
    • item model number: SmartSensor
    • best sellers rank: 1,282 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 1 in Home Thermostat Accessories
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  • Value for Money

    2

    Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Star Certified, ST55
    Sensi
    9.6
    Exceptional

    Emerson Sensi Wi-Fi Smart Thermostat for Smart Home, DIY, Works With Alexa, Energy Star Certified, ST55

    38% Off
    • DIY Installation:Yes
    • Energy Star Certified:Yes
    • Weight:0.85 pounds
    • Wi-Fi Compatibility:Yes
    • Works With:Alexa

  • 3

    TRJ Large Thermostat Lock Box with Key, Clear Thermostat Cover with Lock for Thermostat on Wall, Lockable Thermostat Lock Box Cover, AC Lock Box Cover with Key Fit Thermostats 4" H x 6" W or Smaller
    TRJ
    Available in: 3 styles
    9.5
    Excellent

    TRJ Large Thermostat Lock Box with Key, Clear Thermostat Cover with Lock for Thermostat on Wall, Lockable Thermostat Lock Box Cover, AC Lock Box Cover with Key Fit Thermostats 4" H x 6" W or Smaller

    • color: Clear
    • pattern:N/A
    • batteries included: No
    • item model number: TRJ thermostat lock box-TN01
    • best sellers rank: 14,592 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 10 in Home Thermostat Accessories

  • 4

    ecobee Power Extender Kit C-Wire Adapter - for ecobee Smart Thermostat Essential - Programmable WiFi Thermostat Accessory
    ecobee
    9.4
    Excellent

    ecobee Power Extender Kit C-Wire Adapter - for ecobee Smart Thermostat Essential - Programmable WiFi Thermostat Accessory

  • 5

    Google Nest Thermostat Trim Kit - Made for the Nest Thermostat - Programmable Wifi Thermostat Accessory - Snow
    Google
    9.1
    Excellent

    Google Nest Thermostat Trim Kit - Made for the Nest Thermostat - Programmable Wifi Thermostat Accessory - Snow

    23% Off
    • color: Snow
    • pattern:N/A
    • batteries included: No
    • item model number: GZZN7
    • best sellers rank: 8,890 in Tools & Home Improvement See Top 100 in Tools & Home Improvement 7 in Home Thermostat Accessories
  • See Today’s Deals & Prices

  • 6

    Honeywell Home CG512A1009 Large Thermostat Guard, Fits Thermostats 8. 25" W x 5. 75" H or Smaller, Hand Control
    Honeywell Home
    8.9
    Very Good

    Honeywell Home CG512A1009 Large Thermostat Guard, Fits Thermostats 8. 25" W x 5. 75" H or Smaller, Hand Control

    13% Off

  • 7

    Google Nest Temperature Sensor (2nd Gen) - Room Comfort Sensor with Scheduling - Works with The Nest Learning Thermostat (3rd and 4th Gen) and Nest Thermostat E - Porcelain, White
    Google
    Available in: 2 sizes
    8.7
    Very Good

    Google Nest Temperature Sensor (2nd Gen) - Room Comfort Sensor with Scheduling - Works with The Nest Learning Thermostat (3rd and 4th Gen) and Nest Thermostat E - Porcelain, White

    • product dimensions:2.18 x 2.18 x 0.85 inches
    • color:Porcelain
    • batteries:1 Lithium Ion batteries required.
    • item weight:1.31 ounces
    • upc:193575038704

  • 8

    Pihode Thermostat Lock Box with Combination Lock, Universal Keyless Large Space Thermostat Cover, Fits 7.1" × 4.5" or Smaller Thermostats & Sprinkler Controllers, Sprinkler Controller Guard
    Pihode
    Available in: 4 styles
    8.6
    Very Good

    Pihode Thermostat Lock Box with Combination Lock, Universal Keyless Large Space Thermostat Cover, Fits 7.1" × 4.5" or Smaller Thermostats & Sprinkler Controllers, Sprinkler Controller Guard

  • 9

    Taymac ZTC300 Plastic Thermostat Cover Low Profile, Large, Clear
    TayMac
    Available in: 2 sizes
    8.5
    Good

    Taymac ZTC300 Plastic Thermostat Cover Low Profile, Large, Clear

  • 10

    Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required
    Amazon
    Available in: 2 sizes
    8.3
    Good

    Amazon Smart Thermostat – Save money and energy - Works with Alexa and Ring - C-wire required

    28% Off Limited Time Deal

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