Skip Content

Want to pay an invoice? Please call us at 1-800-GRAINGER (1-800-472-4643).

Filter Results By

Item
Brand
Price
Shop By

Thermostat Accessories

153 Results Found that Include 153 Products

Results per page:  16 | 32 | 48
Calibration/Wrench Kit
Temperature Sensor,1K Ohm
  • RANCO
  • Temperature Sensor, 1K Ohm Temperature Sensor,1K Ohm
  • Item # 44C531
  • Mfr. Model # 1309007-044
  • Temperature Sensor, For Use With Ranco ETC Series Controllers, 22 Gauge Cable, Color Gray, Length (In.) 96,...More

Universal Cover Plate
  • HONEYWELL
  • Universal Cover Plate Universal Cover Plate
  • Item # 6WY14
  • Mfr. Model # 50002883-001
  • Universal Cover Plate, White, Plastic Material, Height 6 In, Width 8 5/16 In, For Use With 6WU98, 6WU99,...More

Wall Mount Cover Plate
  • HONEYWELL
  • Wall Mount Cover Plate Wall Mount Cover Plate
  • Item # 6WY15
  • Mfr. Model # 32003796-001
  • Wall Mount Cover Plate, White, Plastic Material, Height 5 1/2 In, Width 7 9/10 In, For Use With 4NE58, 4NE59,...More

Wireless Indoor Sensor
  • HONEYWELL
  • Wireless Indoor Sensor Wireless Indoor Sensor
  • Item # 12Z045
  • Mfr. Model # C7189R1004
  • Wireless Indoor Sensor, Redlink Enabled Wireless, For Use With RedLink Enabled Thermostats And Accessories,...More

Temperature Sensor,PVC Cable
  • JOHNSON CONTROLS
  • Temperature Sensor, PVC Cable Temperature Sensor,PVC Cable
  • Item # 36P557
  • Mfr. Model # A99BB-25C
  • Temperature Sensor, PVC Cable, For Use With System 350, System 450, Color Gray, Height (In.) 3, Length (In.)...More

Remote Sensor,Use With T775 Series 2
  • HONEYWELL
  • Remote Sensor, Use With T775 Series 2 Remote Sensor,Use With T775 Series 2
  • Item # 3CHJ9
  • Mfr. Model # 50021579-001
  • Remote Sensor, Standard, For Use With T775 Series 2, Control Range -40 to 158 F, Temperature Sensitivity (+ -...More

Coverplate,Plastic
  • HONEYWELL
  • Coverplate, Plastic Coverplate,Plastic
  • Item # 4YE44
  • Mfr. Model # 50001137-001
  • Cover Plate, Color White, Material Plastic, Height 5 In, Width 6 7/8 In, For Use With Thermostats 4YE42, 4YE43...More

Surface Mounting Bracket
  • TM

    Grainger Choice

  • GRAINGER APPROVED
  • Surface Mounting Bracket Surface Mounting Bracket
  • Item # 6UEE3
  • Mfr. Model # 6UEE3
  • Conversion Bracket, Surface Mount, For Use With Snap Disc Controls

RedLink Internet Gateway
  • HONEYWELL
  • RedLink Internet Gateway RedLink Internet Gateway
  • Item # 12Z044
  • Mfr. Model # THM6000R1002
  • RedLink Internet Gateway, Redlink Enabled Wireless, For Use With RedLink Enabled Thermostats And Accessories,...More

Sensor,Remote
  • EMERSON
  • Sensor, Remote Sensor,Remote
  • Item # 3MY18
  • Mfr. Model # F145-1328
  • Remote Sensor, Indoor, For Use With Any Wired White-Rodgers Thermostat with Remote Sensing Capability,...More

Temperature Sensor
  • JOHNSON CONTROLS
  • Temperature Sensor Temperature Sensor
  • Item # 12Y968
  • Mfr. Model # A99BB-200C
  • Temperature Sensor, For Use With C450RCN-1C, Color Gray, Length (In.) 1, Dia. (In.) 1/4, Operating Temp....More

Adapter,Thermocouple
  • VULCAN
  • Adapter, Thermocouple Adapter,Thermocouple
  • Item # 3HL29
  • Mfr. Model # N56/05000-5
  • Bayonet Mount Thermocouple Adapter, Material Nickel Plated Steel, Thread NPT 1/8-27 Inch, Diameter 7/16 Inch,...More

Coverplate,Wall,White
Remote Sensor,Water Resistant
  • HONEYWELL
  • Remote Sensor, Water Resistant Remote Sensor,Water Resistant
  • Item # 2GZP4
  • Mfr. Model # T775-SENS-WR
  • Remote Sensor, Water Resistant, Switch Type SPDT, Control Range -40 to 270 F, Insertion Depth 2 In, Overall...More

20 K Ohm Remote Temp Sensor, Wall Module
  • HONEYWELL
  • 20 K Ohm Remote Temp Sensor, Wall Module 20 K Ohm Remote Temp Sensor, Wall Module
  • Item # 3RCP5
  • Mfr. Model # TR21
  • Remote Sensor, Wall Module, Replaces Model (6WY20) T7770A1006, 20 K Ohm NTC Non-Linear Temp, Color White,...More

Plug,Thermocouple,K
  • VULCAN
  • Plug, Thermocouple, K Plug,Thermocouple,K
  • Item # 3HL36
  • Mfr. Model # N56/05013-K
  • Thermocouple Plug, Type K, Plug/Connector Female, Color Yellow, Quick Disconnect, Cromel Alumel, Plug and...More

Remote Sensor,Water Tight
  • HONEYWELL
  • Remote Sensor, Water Tight Remote Sensor,Water Tight
  • Item # 2GZP5
  • Mfr. Model # T775-SENS-WT
  • Remote Sensor, Water Tight, Switch Type SPDT, Control Range -40 to 270 F, Insertion Depth 2 In, Overall...More

Plug,Thermocouple,J
  • VULCAN
  • Plug, Thermocouple, J Plug,Thermocouple,J
  • Item # 3HL35
  • Mfr. Model # N56/05013-J
  • Thermocouple Plug, Type J, Plug/Connector Female, Color Black, Quick Disconnect, Iron Constantan, Plug and...More

Adapter,Thermocouple
10 K Ohm Remote Temp Sensor, Wall Module
  • HONEYWELL
  • 10 K Ohm Remote Temp Sensor, Wall Module 10 K Ohm Remote Temp Sensor, Wall Module
  • Item # 3RCP6
  • Mfr. Model # TR21-A
  • Remote Sensor, Wall Module, Replaces Model (6WY21) T7770A3002, 10K Ohm For Averaging Only, Color White,...More

Indoor Sensor, Cover Color White
  • HONEYWELL
  • Indoor Sensor, Cover Color White Indoor Sensor, Cover Color White
  • Item # 6WY16
  • Mfr. Model # C7189U1005
  • Indoor Sensor, White, Operating Temp Range 45 to 88 F, 10K Nominal Sensor Ohms @ 75F, Plastic Material, 1 1/2...More

Temperature Stage Module
  • JOHNSON CONTROLS
  • Temperature Stage Module Temperature Stage Module
  • Item # 36P592
  • Mfr. Model # S350AA-1C
  • Temperature Stage Module, For Use With System 350, Color Blue, Height (In.) 5, Width (In.) 3, Depth (In.) 3,...More

Water Temp Sensor
  • HONEYWELL
  • Water Temp Sensor Water Temp Sensor
  • Item # 3TZ85
  • Mfr. Model # 198212CA
  • Replacement Water Temp Sensor, For Honeywell Electronic Remote Temperature Controller, Outdoor, Water Tight,...More

Humidity Sensor, Wall Mount
  • JOHNSON CONTROLS
  • Humidity Sensor, Wall Mount Humidity Sensor, Wall Mount
  • Item # 12Y969
  • Mfr. Model # HE-67S3-0N0BT
  • Humidity Sensor, Wall, For Use With C450RCN-1C, Color Tan, Height (In.) 2, Width (In.) 1-1/2, Depth (In.)...More

Temperature Sensor,PVC Cable
  • JOHNSON CONTROLS
  • Temperature Sensor, PVC Cable Temperature Sensor,PVC Cable
  • Item # 36P559
  • Mfr. Model # A99BB-600C
  • Temperature Sensor, PVC Cable, For Use With System 350, System 450, Color Gray, Height (In.) 3, Length (In.)...More

Temperature Sensor Wall Mount Plate
Wallplate,White,6-3/4inWx4-1/2H
  • EMERSON
  • Wallplate, White, 6-3/4inWx4-1/2H Wallplate,White,6-3/4inWx4-1/2H
  • Item # 38GN47
  • Mfr. Model # F61-2663
  • Wallplate, Wall Mount, For Use With Sensi Wi-Fi Thermostat, Cover Most Paint or Wallpaper Issues Left From...More

Temperature Sensor,36 In
  • JOHNSON CONTROLS
  • Temperature Sensor, 36 In Temperature Sensor,36 In
  • Item # 36P610
  • Mfr. Model # TE-6000-1
  • Temperature Sensor, Resistance Tolerance +/-1.0 Percent, Color Gray, Length (In.) 36, Dia. (In.) 1/4, 1k,...More

Interface Module,2 Duct Sensors
  • HONEYWELL
  • Interface Module, 2 Duct Sensors Interface Module,2 Duct Sensors
  • Item # 12Z040
  • Mfr. Model # YTHM5421R1010/U
  • Equipment Interface Module, Redlink Enabled Wireless, For Use With RedLink Enabled Thermostats And...More

Outdoor Sensor,Black
  • HONEYWELL
  • Outdoor Sensor, Black Outdoor Sensor,Black
  • Item # 6WY17
  • Mfr. Model # C7089U1006
  • Outdoor Sensor, Black, Operating Temp Range -40 to 120 F, 10K Nominal Sensor Ohms @ 75F, Plastic Material,...More

Thermostat Guard,Plastic,5-1/4 in. H
Results per page:  16 | 32 | 48

Check out HVAC thermostat accessories at Grainger to complete or enhance your climate control system or replace worn out parts. You’ll find a variety of accessories such as indoor sensors, remote sensors, universal cover plates, calibration wrench kits, surface mounting brackets, thermocouple plugs, thermocouple adapters and much more. Make the most of your thermostat with accessories from Grainger!

Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order. More