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 145–192 of 600 resultsSorted by popularity

Electronic Temperature Control for Water Heaters

Lochinvar & A.O. Smith

SKU: 100112838
$624.71
MSRP: $718.42
You save 15%
Lochinvar & A.O. Smith 100112838 Electronic Temperature Control quantity
Remote Element Controller, Proportional, 8′ Averaging, 4′ Capillary

Johnson Controls

SKU: T-8000-4
$1,448.98
MSRP: $1,666.33
You save 15%
Johnson Controls T-8000-4 Remote Element Controller, Proportional, 8' Averaging Element quantity
Remote Element Controller, Proportional Action, 15′ Capillary

Johnson Controls

SKU: T-8000-3
$1,448.98
MSRP: $1,666.33
You save 15%
Johnson Controls T-8000-3 Remote Element Controller, Proportional Action, 15' Capillary quantity
MR4 Four Stage Defrost Control, 24 Vac, ±1.8° Accuracy

Johnson Controls

SKU: MR4PMUHV-12
$546.56
MSRP: $628.54
You save 15%
Johnson Controls MR4PMUHV-12 MR4 Four Stage Defrost Control, 24 Vac quantity
Reset Control Module, LCD, Two SPDT Relays, Analog Output

Johnson Controls

SKU: C450RCN-3
$355.98
MSRP: $409.38
You save 15%
Johnson Controls C450RCN-3 Reset Control Module w/ LCD & Two SPDT Relays quantity
Temperature Control, Two Pole, Open Low, 25/90°F Range, Outdoor Case

Johnson Controls

SKU: A72AE-1
$418.45
MSRP: $481.22
You save 15%
Johnson Controls A72AE-1 Temperature Control, 120-240 VAC, Two Pole, Outdoor quantity
100-170°F Manual Reset Open-Hi 6′ Capillary Temperature Controller

Johnson Controls

SKU: A70KA-1
$319.80
MSRP: $367.77
You save 15%
Johnson Controls A70KA-1 100-170°F Manual Reset Open-Hi 6' Cap Temp Controller quantity
Temperature Control, 120-240V, Single Pole, 35–80°F, Manual Reset

Johnson Controls

SKU: A70HA-2
$287.94
MSRP: $331.13
You save 15%
Johnson Controls A70HA-2 Temperature Control, 120-240 Vac, 35–80°F Range quantity
Two Circuit Temperature Control, A70HA-1G

Johnson Controls

SKU: A70HA-1G
$331.58
MSRP: $381.32
You save 15%
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Temperature Control, 120-240V, SPST, Open Low, Manual Reset, 20′ Cap

Johnson Controls

SKU: A70HA-14
$332.71
MSRP: $382.62
You save 15%
Johnson Controls A70HA-14 Temperature Control, 120-240V, SPST, Manual Reset quantity
Temperature Control, Single Pole, 15-55°F, 20 ft Capillary

Johnson Controls

SKU: A70HA-1
$269.20
MSRP: $309.58
You save 15%
Johnson Controls A70HA-1 Temperature Control, Single Pole, 15-55°F, 20 ft Capillary quantity
Temperature Control, Single Pole, Open Low, 35–80°F, Auto Reset

Johnson Controls

SKU: A70GA-2
$263.94
MSRP: $303.53
You save 15%
Johnson Controls A70GA-2 Temperature Control, 120-240V, Single Pole, 35-80°F quantity
Temperature Control, Single Pole, Open Low, 15/55°F Range, Auto Reset

Johnson Controls

SKU: A70GA-1
$330.40
MSRP: $379.96
You save 15%
Johnson Controls A70GA-1 Temperature Control, 120-240V, Single Pole, Open Low quantity
Temperature Control, Single Pole, Open Low, 15–55°F, 20′ Capillary

Johnson Controls

SKU: A70BA-18
$246.30
MSRP: $283.25
You save 15%
Johnson Controls A70BA-18 Temperature Control, 120-240V, Single Pole, 15-55°F quantity
Electronic Temperature Controller, 24 VAC, NEMA 4X, -40 to 212°F

Johnson Controls

SKU: A421GEF-02
$176.63
MSRP: $203.12
You save 15%
Johnson Controls A421GEF-02 Electronic Temperature Controller, 24 VAC, NEMA 4X quantity
Electronic Temperature Controller, 24 VAC, -40 to 212°F Range

Johnson Controls

SKU: A421GBF-02
$123.03
MSRP: $141.48
You save 15%
Johnson Controls A421GBF-02 Electronic Temperature Controller, 24 VAC quantity
Electronic Temperature Control, 120/240V, Off-Cycle Defrost Timer

Johnson Controls

SKU: A421AED-02
$207.58
MSRP: $238.72
You save 15%
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Electronic Temperature Control, 120/240V, Off-Cycle Defrost Timer

Johnson Controls

SKU: A421AED-01
$197.03
MSRP: $226.58
You save 15%
Read more
Electronic Temperature Control, 120/240V, NEMA 4X, -40 to 212°F

Johnson Controls

SKU: A421AEC-02
$173.10
MSRP: $199.07
You save 15%
Johnson Controls A421AEC-02 Electronic Temperature Control, 120/240V, NEMA 4X quantity
Electronic Temperature Control, 120/240V, -40 to 212°F, NEMA 4X

Johnson Controls

SKU: A421AEC-01
$169.58
MSRP: $195.02
You save 15%
Johnson Controls A421AEC-01 Electronic Temperature Control, 120/240V, NEMA 4X quantity
Electronic Temperature Control, 120V, SPDT, -40 to 212°F Range

Johnson Controls

SKU: A421ABG-02
$160.73
MSRP: $184.84
You save 15%
Johnson Controls A421ABG-02 Electronic Temperature Control, 120V, SPDT, -40 to 212°F quantity
Electronic Temperature Control with Off-Cycle Defrost Timer

Johnson Controls

SKU: A421ABD-02
$141.76
MSRP: $163.02
You save 15%
Johnson Controls A421ABD-02 Electronic Temperature Control with Off-Cycle Defrost quantity
Electronic Temperature Control, 120/240V, -40 to 212°F Range

Johnson Controls

SKU: A421ABC-06
$129.31
MSRP: $148.71
You save 15%
Johnson Controls A421ABC-06 Electronic Temperature Control, 120/240V, -40 to 212°F quantity
Electronic Temperature Control, 120/240V, -40 to 212°F Range

Johnson Controls

SKU: A421ABC-04
$124.30
MSRP: $142.95
You save 15%
Johnson Controls A421ABC-04 Electronic Temperature Control, 120/240V, -40 to 212°F quantity
Electronic Temperature Control, 120/240V, -40–212°F, NEMA 1, LCD

Johnson Controls

SKU: A421ABC-03
$128.26
MSRP: $147.50
You save 15%
Johnson Controls A421ABC-03 Electronic Temperature Control, 120/240V, -40–212°F, NEMA 1, LCD quantity
Electronic Temperature Control, 120/240V, -40 to 212°F Range

Johnson Controls

SKU: A421ABC-02
$123.03
MSRP: $141.48
You save 15%
Johnson Controls A421ABC-02 Electronic Temperature Control, 120/240V, -40 to 212°F quantity
Agricultural Two-Stage Thermostat, 120/208/240/277V, 30–110°F

Johnson Controls

SKU: A28PJ-1
$436.55
MSRP: $502.03
You save 15%
Johnson Controls A28PJ-1 Agricultural Two-Stage Thermostat, 120/208/240/277V quantity
Two-Stage Temperature Control, 60–90°F Range, Two SPDT Switches

Johnson Controls

SKU: A28GJ-33
$343.34
MSRP: $394.84
You save 15%
Johnson Controls A28GJ-33 Two-Stage Temperature Control, 120/208/240/277V quantity
Two Stage Temperature Control, 2 SPDT, 30–110°F Setpoint Range

Johnson Controls

SKU: A28AA-4
$281.58
MSRP: $323.82
You save 15%
Johnson Controls A28AA-4 Two Stage Temperature Control, 2 SPDT, 30-110°F quantity
Two-Stage Temperature Control, 2 SPDT, 40–90°F Setpoint Range

Johnson Controls

SKU: A28AA-36
$291.14
MSRP: $334.81
You save 15%
Johnson Controls A28AA-36 Two-Stage Temperature Control, 2 SPDT, 40-90°F quantity
Two Stage Temperature Control, 2 SPDT, 120-277V, -30 to 100°F

Johnson Controls

SKU: A28AA-29
$291.14
MSRP: $334.81
You save 15%
Johnson Controls A28AA-29 Two Stage Temperature Control, 2 SPDT, 120-277V quantity
Warm Air High Limit Control, SPDT, Manual Reset, 25–215°F

Johnson Controls

SKU: A25CP-1
$284.08
MSRP: $326.69
You save 15%
Johnson Controls A25CP-1 Warm Air High Limit Temperature Control, SPDT, Manual Reset quantity
Utility Thermostat, 120/208/240V, SPDT, Remote Bulb, 5′ Capillary

Johnson Controls

SKU: A19ZBC-6
$360.99
MSRP: $415.14
You save 15%
Read more
Mechanical Temp Control, SPDT, Auto Reset, 45–85°F, Defrost & Fan Delay

Johnson Controls

SKU: A19ZBC-2
$385.88
MSRP: $443.76
You save 15%
Johnson Controls A19ZBC-2 Mechanical Temperature Control, SPDT, 45–85°F quantity
Remote Bulb Temperature Control, SPDT, 0–190°F, 24–277Vac

Johnson Controls

SKU: A19QSC-4
$177.91
MSRP: $204.60
You save 15%
Johnson Controls A19QSC-4 Remote Bulb Temperature Control, SPDT, 0-190°F quantity
Remote Bulb Mechanical Temperature Control, SPDT, 0–150°F

Johnson Controls

SKU: A19QSC-1
$176.79
MSRP: $203.31
You save 15%
Johnson Controls A19QSC-1 Remote Bulb Mechanical Temperature Control, SPDT quantity
Agricultural/Industrial Mechanical Temperature Control with Knob

Johnson Controls

SKU: A19PRC-1
$322.01
MSRP: $370.31
You save 15%
Johnson Controls A19PRC-1 Agricultural/Industrial Mechanical Temperature Control quantity
Flange Mount Duct Temperature Control, SPDT, 30–110°F Range

Johnson Controls

SKU: A19EAF-2
$179.39
MSRP: $206.30
You save 15%
Johnson Controls A19EAF-2 Flange Mount Duct Temperature Control, SPDT, 30–110°F quantity
Strap-On Surface Mount Temperature Control, SPDT, 200–240°F

Johnson Controls

SKU: A19DAF-2
$132.13
MSRP: $151.95
You save 15%
Read more
Strap-On Surface Mount Temperature Control, SPDT, Auto Reset

Johnson Controls

SKU: A19DAC-12
$121.66
MSRP: $139.91
You save 15%
Johnson Controls A19DAC-12 Strap-On Surface Mount Temperature Control, SPDT quantity
Strap-On Surface Mounted Temperature Control, SPDT, Auto Reset

Johnson Controls

SKU: A19DAC-1
$127.75
MSRP: $146.91
You save 15%
Johnson Controls A19DAC-1 Strap-On Surface Mounted Temperature Control, SPDT quantity
Strap-On Mechanical Temperature Control, SPDT, 60–90°F

Johnson Controls

SKU: A19CAC-1
$123.16
MSRP: $141.63
You save 15%
Johnson Controls A19CAC-1 Strap-On Mechanical Temperature Control, SPDT quantity
Explosion Proof Remote Bulb Temperature Control, SPDT

Johnson Controls

SKU: A19BUC-2
$781.43
MSRP: $898.64
You save 15%
Johnson Controls A19BUC-2 Explosion Proof Remote Bulb Temperature Control quantity
Utility Thermostat, 120/208/240V, -30 to 40°C Range, SPDT, Auto Reset

Johnson Controls

SKU: A19BBC-4
$171.30
MSRP: $197.00
You save 15%
Johnson Controls A19BBC-4 Utility Thermostat, 120/208/240V, -30 to 40°C, SPDT quantity
Coiled Bulb Space Temperature Control, SPDT, -30 to 100°F

Johnson Controls

SKU: A19BBC-2
$170.85
MSRP: $196.48
You save 15%
Johnson Controls A19BBC-2 Coiled Bulb Space Temperature Control, SPDT, -30 to 100°F quantity
Coiled Bulb Space Temperature Control, SPDT, 30–110°F Range

Johnson Controls

SKU: A19BAF-1
$179.39
MSRP: $206.30
You save 15%
Johnson Controls A19BAF-1 Coiled Bulb Space Temperature Control, SPDT, 30–110°F quantity
Utility Thermostat, 120/208/240V, SPDT, 0–43°C, Auto Reset, Style 3

Johnson Controls

SKU: A19BAC-3
$163.48
MSRP: $188.00
You save 15%
Johnson Controls A19BAC-3 Utility Thermostat, 120/208/240V, SPDT, 0–43°C quantity
Utility Thermostat, 120/208/240V, 30–110°F, Auto Reset, Knob Adjust

Johnson Controls

SKU: A19BAC-15
$164.95
MSRP: $189.69
You save 15%
Johnson Controls A19BAC-15 Utility Thermostat, 120/208/240V, 30–110°F Range quantity