Thermostat Accessories

Maximize the performance of your thermostat with essential accessories designed to enhance comfort and ease of use. Our selection of thermostat accessories helps protect against tampering, improves functionality, and streamlines operation for both homes and commercial buildings. Explore a wide range of wall mounts, protective guards, adapters, and more to elevate your space’s comfort and efficiency. Shop our collection today to find the perfect thermostat accessories to fit your needs!

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Showing 1–48 of 218 resultsSorted by popularity

Non-Plenum Thermostat Wire – 18/8 High-Performance Low-Voltage Cable

Genesis

SKU: 18/8-TW

Rated 5.00 out of 5
Price range: $21.88 through $1,114.55
Select options
This product has multiple variants. The options may be chosen on the product page
18 AWG 10C Solid Thermostat Cable, White 250ft Reel

Genesis

SKU: TW-18/10

Rated 5.00 out of 5
$152.59
MSRP: $175.48
You save 15%
Genesis TW-18/10 (47180307) Non-Plenum Rated Thermostat Wire in 250ft Roll quantity
UWP wall mounting system for T-Series thermostats

Resideo

SKU: 32321051-001
$4.96
Resideo 32321051-001 UWP Mounting System for T-Series Thermostats quantity
Outdoor temperature sensor for T-32-P and UT32 thermostats

iO HVAC Controls

SKU: T-OTS

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Black Wallplate for Sensi Touch 2 and Sensi Lite Thermostats

White-Rodgers

SKU: SA6B
$5.24
MSRP: $6.03
You save 15%
White-Rodgers SA6B Black Thermostat Wallplate For Sensi Touch 2 & Sensi Lite quantity
Remote Hardwired Outdoor Temperature Sensor

Resideo

SKU: C7089U1006
$33.63
Honeywell C7089U1006 Hardwired Outdoor Remote Sensor quantity
Wall Plate for Sensi Thermostats

White-Rodgers

SKU: F61-2663

Rated 5.00 out of 5
$5.51
MSRP: $11.42
You save 52%
White-Rodgers F61-2663 Wall Plate for Sensi Thermostats quantity
Remote Hardwired Indoor Temperature Sensor

Resideo

SKU: C7189U1005

Rated 5 out of 5
$39.01
Honeywell C7189U1005 Hardwired Indoor Remote Sensor quantity
18 AWG 8C Solid Plenum Thermostat Cable, 250ft Reel

Genesis

SKU: TWP-18/8

Rated 5.00 out of 5
$159.99
MSRP: $183.99
You save 15%
Genesis TWP-18/8 (47660312) Plenum-Rated Thermostat Wire in 250ft Roll quantity
RedLINK Equipment Interface Module for T10+ Smart Thermostats

Honeywell Home

SKU: THM04R3000
$156.00
Read more
RedLINK Enabled Wireless Indoor Air Sensor

Resideo

SKU: C7189R1004

Rated 5.00 out of 5
$56.14
Honeywell C7189R1004 RedLINK Wireless Indoor Sensor, Temp and Humidity quantity
RedLINK Internet Gateway for Thermostats

Resideo

SKU: THM6000R7001

Rated 4.17 out of 5
$91.10
Honeywell THM6000R7001 RedLINK Internet Gateway for Thermostats quantity
Sale!
18 AWG 3 Conductor Thermostat Wire

Genesis

SKU: 18/3-TW
Price range: $16.99 through $329.63
Select options
This product has multiple variants. The options may be chosen on the product page
RedLINK 3.0 indoor sensors for T10+ (2-Pack)

Resideo

SKU: C7189R3002-2

Rated 5 out of 5
$102.35
Honeywell Home C7189R3002-2 RedLINK 3.0 Indoor Sensors for T10+ (2-Pack) quantity
T-S1 Indoor Remote Temperature Sensor

iO HVAC Controls

SKU: T-S1

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Universal Thermostat Guard with Clear Cover

White-Rodgers

SKU: F29-0198
$18.50
MSRP: $37.63
You save 51%
White-Rodgers F29-0198 Universal Thermostat Guard with Clear Cover quantity
Sale!
Non-Plenum Thermostat Wire – 18/5 High-Performance Low-Voltage Cable

Genesis

SKU: 18/5-TW

Rated 5.00 out of 5
Price range: $21.19 through $730.24
Select options
This product has multiple variants. The options may be chosen on the product page
Junction Box Adapter Plate for ecobee Thermostats

ecobee

SKU: ADAPTPLATEBX-02
$13.49
MSRP: $15.51
You save 13%
ecobee Junction Box Adapter Plate for SmartThermostat Pro, ecobee4 & ecobee3 lite | ADAPTPLATEBX-02 quantity
RedLINK Wireless Outdoor Sensor, 5 Year Battery

Resideo

SKU: C7089R1013

Rated 5 out of 5
$74.50
Honeywell C7089R1013 RedLINK Wireless Outdoor Sensor quantity
Resideo CHW3610W8001 L1 Wi-Fi Water Leak Detector

Resideo

SKU: CHW3610W8001
$54.16
Resideo CHW3610W8001 L1 Wi-Fi Water Leak Detector (Single Pack) quantity
Adapter plate for mounting fan coil thermostats to junction boxes

Resideo

SKU: 50033847-001

Rated 5.00 out of 5
$15.06
Honeywell 50033847-001 Adapter Plate for Fan Coil Thermostat Mounting quantity
18 AWG 4 Conductor Thermostat Wire

Genesis

SKU: 18/4-TW
Price range: $79.99 through $89.99
Select options
This product has multiple variants. The options may be chosen on the product page
RedLINK Equipment Interface Module (EIM)

Resideo

SKU: THM5421R1021

Rated 5.00 out of 5
$91.55
Honeywell THM5421R1021 RedLINK Equipment Interface Module (EIM) quantity
Replacement wall plate for Sensi Touch 2 & Sensi Lite thermostats, white

White-Rodgers

SKU: SA6W
$5.24
MSRP: $6.03
You save 15%
Copeland SA6W Thermostat Wall Plate for Sensi Touch 2 & Sensi Lite Thermostats quantity
18 AWG 2C Str Shielded Plenum, Natural, 1000ft Reel-in-Box

Genesis

SKU: TSP-18/2
$229.37
MSRP: $263.78
You save 15%
Genesis TSP-18/2 (32142112) Twisted, Shielded, Plenum-Rated Wire, 1000ft quantity
Cover Plate for T-Series Thermostats

Resideo

SKU: THP2400A1080
$17.00
Honeywell THP2400A1080 Cover Plate for T-Series Thermostats quantity
18 AWG 2 Conductor Thermostat Wire

Genesis

SKU: 18/2-TW

Rated 5.00 out of 5
Price range: $15.16 through $80.79
Select options
This product has multiple variants. The options may be chosen on the product page
Equipment Interface Module Kit with 2 duct sensors

Resideo

SKU: YTHM5421R1010
$104.99
Honeywell YTHM5421R1010 RedLINK Equipment Interface Module, 2 Sensors quantity
Multi-stage programmable thermostat with remote sensor support

Pro1 IAQ

SKU: T755S
$97.99
MSRP: $222.79
You save 56%
PRO1 T755S Digital 7-Day/5-1-1 Programmable Thermostat, 2H/2C, Wired Remote Sensor Compatible quantity
Non-Plenum Thermostat Wire – 18/6 High-Performance Low-Voltage Cable

Genesis

SKU: 18/6-TW
Price range: $25.67 through $860.56
Select options
This product has multiple variants. The options may be chosen on the product page
Medium Cover Plate & J-Box Adaptor for TSeries Thermostats

Resideo

SKU: THP2400A1075
$3.09
Honeywell THP2400A1075 Medium Cover Plate & J-Box Adaptor for T1, T4, & T6 Series Thermostats quantity
16″ Ionizing Wire for Electric Air Cleaners

Honeywell Home

SKU: 136434BA
$13.48
Read more
WP-T Wall Plate for T32P Thermostats

iO HVAC Controls

SKU: WP-T

$14.04Add to Cart for Savings

iO HVAC Controls WP-T Wall Plate for T32P Thermostats quantity
Wall Plate for Prestige IAQ Thermostats, White

Resideo

SKU: THP2400A1027W
$16.09
Honeywell THP2400A1027W Wall Plate for Prestige IAQ Thermostats, White quantity
Universal thermostat wall plate cover, white, 5.5″H x 7.5″W

Pro1 IAQ

SKU: T119
$9.99
MSRP: $14.75
You save 32%
PRO1 T119 Universal Thermostat Wall Plate Cover, White quantity
Power Connector, C-Wire Substitute

Nest

SKU: GGA02493US
$19.99
MSRP: $22.99
You save 15%
Google Nest GGA02493US Power Connector, C-Wire Substitute quantity
RedLINK Outdoor Temperature And Humidity Sensor For T10+

Resideo

SKU: C7089R3013
$97.50
Honeywell Home C7089R3013 RedLINK Outdoor Temperature And Humidity Sensor For T10+ quantity
Sale!
Wall Plate for Comfort-Set Thermostats with Adaptor Plate

White-Rodgers

SKU: WP80
Original price was: $6.00.Current price is: $5.99.
MSRP: $14.78
You save 59%
White-Rodgers F61-2500 80-Series Thermostat Wall Plate with Adaptor quantity
Universal Thermostat Guard, Clear

Resideo

SKU: TG511A1000
$37.67
Honeywell TG511A1000 Universal Thermostat Guard, Clear quantity
RedLINK 3.0 Indoor Sensor 2-Pack

Honeywell Home

SKU: C7189R3010-2
$107.99
MSRP: $124.19
You save 13%
Honeywell C7189R3010-2 RedLINK 3.0 Indoor Sensor 2-Pack, Wireless Temp/Humidity/Motion, ElitePRO & T10+ Pro Compatible quantity
Outdoor Temperature Sensor, Detects Ambient Temperature

iO HVAC Controls

SKU: ZP3-OTS

$29.63Add to Cart for Savings

iO HVAC Controls ZP3-OTS Outdoor Temperature Sensor for the ZP3-HPS quantity
2-Pack Smart Sensor Motion Detector in White

ecobee

SKU: EB-RSHM2PK-01

Rated 4.50 out of 5
$99.99
ecobee EB-RSHM2PK-01 SmartSensor in White, 2-Pack quantity
Comfort System Dual Indoor Remote Sensor

iO HVAC Controls

SKU: T-S2

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Sale!
Wall plate for Comfort-Set 90 Blue Touchscreen Series thermostats

White-Rodgers

SKU: WP90-blue
Original price was: $15.99.Current price is: $6.47.
MSRP: $20.10
You save 68%
White-Rodgers WP90-blue Wall Cover Plate for 90 Series Blue Touchscreen Thermostats quantity
18 AWG 4C Solid Plenum Thermostat Cable, 250ft Reel

Genesis

SKU: TWP-18/4
$81.82
MSRP: $94.09
You save 15%
Genesis TWP-18/4 (47620312) Plenum-Rated Thermostat Wire in 250ft Roll quantity
ecobee EB-PEK2-01 Power Extender Kit For Homes Without A C Or Common Wire

ecobee

SKU: EB-PEK2-01
$24.99
ecobee EB-PEK2-01 Power Extender Kit For Homes Without A C Or Common Wire quantity
Universal programmable thermostat with IAQ control, multi-stage support

Pro1 IAQ

SKU: T855SH
$115.99
MSRP: $251.93
You save 54%
PRO1 IAQ T855SH Universal Programmable Thermostat – 2H/3C Conv, 5H/3C Heat Pump quantity
Outdoor Temperature Sensor for the ZP Zone Panels

iO HVAC Controls

SKU: ZPA-OTS

$31.89Add to Cart for Savings

iO HVAC ZPA-OTS Outdoor Temperature Sensor for the ZP Zone Panels quantity