Temperature Controllers

A temperature controller is an essential device for managing the difference between a desired setpoint and an actual measured temperature. Ideal for applications in commercial heating, cooling, air conditioning, and refrigeration, temperature controllers provide precise on/off control to maintain optimal conditions. Modern electronic temperature controllers feature easy-to-read digital displays, enabling quick programming with a single touch. Many models include one- and two-stage capabilities, advanced diagnostic detection, and a broad setpoint temperature range, making them versatile for various heating and cooling applications.

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Showing 97–144 of 600 resultsSorted by popularity

100-550°F Open-on-Rise Thermostat, 72″ Capillary, Aux Switch

Robertshaw

SKU: 5300-088
$146.91
MSRP: $168.95
You save 15%
Robertshaw 5300-088 100-550°F 72" Cap Open-on-Rise Thermostat w/ Aux Switch quantity
100–550°F Capillary Thermostat, 36″ Capillary, with Auxiliary Switch

Robertshaw

SKU: 5300-015
$146.91
MSRP: $168.95
You save 15%
Robertshaw 5300-015 100–550°F 36" Capillary Thermostat with Auxiliary Switch quantity
600°F Manual Reset High-Limit Control with 48″ Capillary

Robertshaw

SKU: 5225-064
$227.05
MSRP: $261.11
You save 15%
Robertshaw 5225-064 600°F 48" Cap Manual Reset High-Limit Control quantity
Commercial Electric Stat, 100–550°F Range, 60″ Capillary

Robertshaw

SKU: 5000-851
$271.80
MSRP: $312.57
You save 15%
Robertshaw 5000-851 Commercial Electric Stat, 100-550°F, 60" Capillary quantity
Commercial Electric Thermostat, 0/100°F Range, 84″ Capillary

Robertshaw

SKU: 5000-071
$571.03
MSRP: $656.68
You save 15%
Robertshaw 5000-071 Commercial Electric Thermostat, 0/100°F, 84" Cap quantity
150-400°F Commercial Gas Thermostat, 1/4″ Pipe, 36″ Capillary

Robertshaw

SKU: 4350-028
$182.31
MSRP: $209.66
You save 15%
Robertshaw 4350-028 150-400°F Commercial Gas Thermostat 1/4" Pipe 36" Cap quantity
Commercial Thermostat 200-550°F, 1/2″ Connection, 48″ Capillary

Robertshaw

SKU: 4200-011
$294.49
MSRP: $338.66
You save 15%
Robertshaw 4200-011 Commercial Thermostat 200-550°F, 1/2", 48" Cap quantity
Temperature Controller with Auto Reset

Raypak

SKU: 014307F
$190.96
MSRP: $219.60
You save 15%
Raypak 014307F Temperature Controller with Auto Reset quantity
Staged Controller with Outdoor Reset

Raypak

SKU: 014279F
$388.13
MSRP: $446.35
You save 15%
Raypak 014279F Staged Controller with Outdoor Reset quantity
Digital Controller for Pool & Spa Heating Systems

Raypak

SKU: 013293F
$655.34
MSRP: $753.64
You save 15%
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4-Stage Temperature Control, SKU 009862F

Raypak

SKU: 009862F
$1,078.31
MSRP: $1,240.06
You save 15%
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SPDT Medium Temperature Control, 22.5/47.5°F, 36″ Capillary

Ranco

SKU: O16-601
$173.03
MSRP: $198.98
You save 15%
Ranco O16-601 SPDT Medium Temperature Control, 22.5/47.5°F, 36" Capillary quantity
Medium Temperature Controller, 0/55°F Range, 72″ Capillary

Ranco

SKU: O10-1473
$133.94
MSRP: $154.03
You save 15%
Ranco O10-1473 Medium Temperature Controller, 0/55°F, 72" Capillary quantity
Temperature Controller for Precise HVAC & Refrigeration Control

Ranco

SKU: MT-514E
$121.09
MSRP: $139.25
You save 15%
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Two-Stage Temperature Controller, -30/220°F, 24V, 0-10V Output, SPDT

Ranco

SKU: ETC-212100-000
$162.53
MSRP: $186.91
You save 15%
Ranco ETC-212100-000 Two-Stage Temperature Controller -30/220°F, 24V, 0-10V Output quantity
Ice Bin Control with 84″ Capillary Tube

Ranco

SKU: A30-3953-000
$43.90
MSRP: $50.49
You save 15%
Ranco A30-3953-000 Ice Bin Control 84" Capillary quantity
SPST Refrigeration Control with 42″ Capillary Tube

Ranco

SKU: A30-182
$115.73
MSRP: $133.09
You save 15%
Ranco A30-182 SPST Refrigeration Control with 42" Capillary quantity
110/170°F SPST Thermostat, OEM Replacement

Rheem

SKU: SP310020
$18.54
MSRP: $21.32
You save 15%
Rheem-Ruud SP310020 110/170°F SPST Thermostat quantity
Board Mounted General Purpose Limit Switch, 180°F Open/160°F Close

Rheem

SKU: 47-21711-11
$10.88
MSRP: $12.51
You save 15%
Rheem-Ruud 47-21711-11 Board Mounted General Purpose Limit Switch, 180°F Open/160°F Close quantity
Auto Reset Limit Switch, DPST, 90°F Close/130°F Open, Red

Rheem

SKU: 47-20045-06
$22.16
MSRP: $25.48
You save 15%
Rheem-Ruud 47-20045-06 Auto Reset Limit Switch, DPST, 90°F Close/130°F Open quantity
Hi-Limit Thermostat, 100–240°F Temperature Range

Patterson-Kelley

SKU: 23-0000-0230
$413.91
MSRP: $476.00
You save 15%
Patterson-Kelley 23-0000-0230 Hi-Limit Thermostat, 100-240°F quantity
JUMO Thermostat EM Series, 95–210°F Temperature Range

Patterson-Kelley

SKU: 10-0490-3516
$516.89
MSRP: $594.42
You save 15%
Patterson-Kelley 10-0490-3516 JUMO Thermostat EM Series 95-210°F quantity
TH356 Rigid Bulb Thermostat, 30–180°F Temperature Range

Siemens

SKU: 356-1005
$454.08
MSRP: $522.19
You save 15%
Siemens Building Technology 356-1005 TH356 Rigid Bulb Thermostat 30-180°F quantity
30/180°F Direct Acting Thermostat with Rigid Bulb Sensor

Siemens

SKU: 356-0750
$366.33
MSRP: $421.28
You save 15%
Siemens Building Technology 356-0750 30/180F D.A. Rigid Bulb Thermostat quantity
Heat R/A Cool D/A Dual Setpoint Controller

Siemens

SKU: 193-217
$199.94
MSRP: $229.93
You save 15%
Siemens Building Technology 193-217 Heat R/A Cool D/A Dual Setpoint Controller quantity
20/120°F 6′ Capillary SPDT Temperature Controller

Siemens

SKU: 141-0520
$228.30
MSRP: $262.55
You save 15%
Siemens Building Technology 141-0520 20/120F 6' Cap SPDT Temperature Controller quantity
KPS79 Temperature Controller, -40 to 70°C Range, SPDT

Peerless Boiler

SKU: 54156
$305.89
MSRP: $351.77
You save 15%
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50/350°F Reverse Acting Rigid Bulb Air Operated Thermostat

Powers Process Controls

SKU: 744-1214
$3,004.68
MSRP: $3,455.38
You save 15%
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Electronic Temperature Defrost Control with Remote Sensor

Paragon

SKU: ERC2-222111-370
$422.96
MSRP: $486.40
You save 15%
Paragon ERC2-222111-370 Electronic Temperature Defrost Control w/ Remote quantity
Remote Bulb Thermostat -30/100°F SPDT NEMA 4X 8 ft

PECO

SKU: TRF115-007
$94.98
MSRP: $109.23
You save 15%
PECO TRF115-007 Remote Bulb Thermostat -30/100°F SPDT NEMA 4X 8 ft quantity
-30/100°F SPDT NEMA 4X Coiled Bulb Thermostat

PECO

SKU: TF115-023
$87.68
MSRP: $100.83
You save 15%
PECO TF115-023 -30/100°F SPDT NEMA 4X Coiled Bulb Thermostat quantity
Digital Display with Temperature Adjustment

PECO

SKU: SDP155-009
$125.55
MSRP: $144.38
You save 15%
PECO SDP155-009 Digital Display with Temperature Adjustment quantity
Replacement Temperature Knob 155°F – 10 Pack

PECO

SKU: 73207
$53.28
MSRP: $61.27
You save 15%
PECO 73207 Replacement Temperature Knob 155°F - 10 Pack quantity
Water Heater Controller for NTI Boiler Systems

NTI Boiler

SKU: 6000084158
$597.39
MSRP: $687.00
You save 15%
NTI Boiler 6000084158 Water Heater Controller quantity
Thermostat Op40 Cl20 Freeze Protection Temperature Control

Mars

SKU: 33475
$90.41
MSRP: $103.97
You save 15%
Mars 33475 Thermostat Op40 Cl20 Freeze Protection Temperature Control quantity
Refrigeration Thermostat, Opens at 20°F, Closes at 60°F

Mars

SKU: 33455
$55.91
MSRP: $64.30
You save 15%
Mars 33455 Refrigeration Thermostat Open 20°F Close 60°F quantity
Defrost Thermostat, Opens at 20°F, Closes at 5°F

Mars

SKU: 33435
$84.14
MSRP: $96.76
You save 15%
Mars 33435 Defrost Thermostat, Opens at 20°F, Closes at 5°F quantity
50-90°F Remote Temperature Selector

Maxitrol

SKU: TD92-0509
$341.23
MSRP: $392.41
You save 15%
Maxitrol TD92-0509 50-90°F Remote Temperature Selector quantity
55-90°F Wall Mount Space Temperature Selector

Maxitrol

SKU: TD244
$179.23
MSRP: $206.11
You save 15%
Maxitrol TD244 55-90°F Wall Mount Space Temperature Selector quantity
40-90°F Room Override Thermostat for Modulating Systems

Maxitrol

SKU: T115
$203.21
MSRP: $233.69
You save 15%
Maxitrol T115 40-90°F Room Override Thermostat quantity
34/70°F Manual Reset Low Limit DPDT Control

Dynacon

SKU: TF142-SODP20
$265.19
MSRP: $304.97
You save 13%
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Temperature Cut Out, DP-DT, 34–70°F Range, Auto Reset

Dynacon

SKU: TF142-SOAP20
$293.31
MSRP: $337.31
You save 13%
Read more
Separate Remote Sensor/Dial Thermostat with 6’6″ Capillary

Macon Controls

SKU: EVOLZ
$172.75
MSRP: $198.66
You save 15%
Macon Controls EVOLZ Separate Remote Sensor/Dial Thermostat 6'6" Capillary quantity
Thermostat (T-Stat) for Indirect Water Heater Tank

Lochinvar & A.O. Smith

SKU: 100208546
$309.99
MSRP: $356.49
You save 15%
Lochinvar & A.O. Smith 100208546 T-Stat for Indirect Tank quantity
3 Stage Thermostat Control for Lochinvar & A.O. Smith

Lochinvar & A.O. Smith

SKU: 100208492
$648.14
MSRP: $745.36
You save 15%
Lochinvar & A.O. Smith 100208492 3 Stage Control (TSTAT) quantity
Limit Thermostat Control, OEM Replacement Part

Lochinvar & A.O. Smith

SKU: 100170640
$295.29
MSRP: $339.58
You save 15%
Lochinvar & A.O. Smith 100170640 Limit Thermostat Control quantity
Digital Temperature Control Panel Assembly, OEM Replacement

Lochinvar & A.O. Smith

SKU: 100164439
$1,814.18
MSRP: $2,086.31
You save 15%
Lochinvar & A.O. Smith 100164439 Digital Temp Ctrl Panel Assy quantity
Electronic Thermostat for Water Heating Systems

Lochinvar & A.O. Smith

SKU: 100164435
$2,008.00
MSRP: $2,309.20
You save 15%
Lochinvar & A.O. Smith 100164435 Electronic Thermostat quantity