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Temperature Controllers

  • Single Stage ETC Temperature Control w/ 8' Sensor, 120/240V Input Product Image
    $52.35 each
    $254.75 box of 5
    $50.95 each
    794
    Fri, Aug 30
    794
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    794 Fri, Aug 30
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  • Single Stage, NEMA 1 Digital Temp Control (120/240VAC SPDT) Product Image
    Single Stage, NEMA 1 Digital Temp Control (120/240VAC SPDT)
    SKU: A421ABC-02C
    Brand: Johnson Controls
    (17)
    $65.95 each
    $319.75 box of 5
    $63.95 each
    622
    Fri, Aug 30
    622
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    622 Fri, Aug 30
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  • Single Stage Temperature Control w/ Sensor (24V Input) Product Image
    Single Stage Temperature Control w/ Sensor (24V Input)
    SKU: ETC-112000-000
    Brand: Ranco
    (15)
    $56.95 each
    $274.75 box of 5
    $54.95 each
    215
    Fri, Aug 30
    215
    QtyArrives
    215 Fri, Aug 30
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  • Single Stage Temp Control w/ 8' Capillary (SPDT) Product Image
    Single Stage Temp Control w/ 8' Capillary (SPDT)
    SKU: A19ABC-24C
    Brand: Johnson Controls
    (8)
    $57.95 each
    $279.75 box of 5
    $55.95 each
    684
    Fri, Aug 30
    684
    QtyArrives
    684 Fri, Aug 30
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  • Refrigeration Temp Ctrl.<br>w/ 5' Capillary<br>(-30&#176;F to 90&#176;F) Product Image
    $49.79 each
    $239.45 box of 5
    $47.89 each
    153
    Fri, Aug 30
    153
    QtyArrives
    153 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • Single Stage Digital Temperature Control (24V, SPDT) Product Image
    Single Stage Digital Temperature Control (24V, SPDT)
    SKU: A421GBF-02C
    Brand: Johnson Controls
    (3)
    $62.95 each
    $304.75 box of 5
    $60.95 each
    238
    Fri, Aug 30
    238
    QtyArrives
    238 Fri, Aug 30
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  • Remote Bulb Temp Ctrl Cooling Only<br>(-30&#176;F to 100&#176;F)<br> Product Image
    Remote Bulb Temp Ctrl Cooling Only (-30°F to 100°F)
    SKU: A19ABA-40C
    Brand: Johnson Controls
    (4)
    $49.95 each
    $239.75 box of 5
    $47.95 each
    257
    Fri, Aug 30
    257
    QtyArrives
    257 Fri, Aug 30
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  • Temperature Sensor<br>for Ranco Control Product Image
    Temperature Sensor for Ranco Control
    SKU: 1309007-044
    Brand: Ranco
    (7)
    $14.75 each
    $70.75 box of 5
    $14.15 each
    151
    Fri, Aug 30
    151
    QtyArrives
    151 Fri, Aug 30
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  • 2-Stage Temperature Control w/ Sensor (120/240V Input) Product Image
    2-Stage Temperature Control w/ Sensor (120/240V Input)
    SKU: ETC-211000-000
    Brand: Ranco
    (10)
    $99.95 each
    $479.75 box of 5
    $95.95 each
    115
    Fri, Aug 30
    115
    QtyArrives
    115 Fri, Aug 30
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  • Replacement PTC Sensor<br>with 6-1/2' (2 m) Leads Product Image
    Replacement PTC Sensor with 6-1/2' (2 m) Leads
    SKU: A99BB-200C
    Brand: Johnson Controls
    (6)
    $25.95 each
    $124.75 box of 5
    $24.95 each
    87
    Fri, Aug 30
    87
    QtyArrives
    87 Fri, Aug 30
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  • Electronic<br>Temperature Controller<br>(24/120/208/240 Volts AC) Product Image
    $67.99 each
    $263.96 box of 4
    $65.99 each
    45
    Fri, Aug 30
    45
    QtyArrives
    45 Fri, Aug 30
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  • Temperature Control<br>1 Input, 1 SPDT Relay<br>1 Sensor Included Product Image
    $134.99 each
    $386.97 box of 3
    $128.99 each
    144
    Fri, Aug 30
    144
    QtyArrives
    144 Fri, Aug 30
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  • Temperature Control<br>2 Inputs, 4 SPDT Relays<br>1 Sensor Product Image
    Temperature Control 2 Inputs, 4 SPDT Relays 1 Sensor
    SKU: T775B2040
    Brand: Honeywell
    (5)
    $283.99 each
    $809.97 box of 3
    $269.99 each
    5
    Fri, Aug 30
    5
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    5 Fri, Aug 30
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  • Remote Bulb Refrigeration Temperature Controller (-30&#176;F to 90&#176;F, 8' Cap) Product Image
    $61.99 each
    $353.94 box of 6
    $58.99 each
    130
    Fri, Aug 30
    130
    QtyArrives
    130 Fri, Aug 30
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  • 1097 Ohm Standard Temperature Sensor Product Image
    1097 Ohm Standard Temperature Sensor
    SKU: 50021579-001
    Brand: Honeywell
    $43.19 each
    $207.45 box of 5
    $41.49 each
    118
    Fri, Aug 30
    118
    QtyArrives
    118 Fri, Aug 30
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  • Temperature Control (-30&#176; to 100&#176;F) Product Image
    Temperature Control (-30° to 100°F)
    SKU: A19BBC-2C
    Brand: Johnson Controls
    (4)
    $81.95 each
    $394.75 box of 5
    $78.95 each
    351
    Fri, Aug 30
    351
    QtyArrives
    351 Fri, Aug 30
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  • Temperature Control<br>2 Inputs, 2 Analog Outputs <br>1 Sensor Included Product Image
    $151.99 each
    $437.97 box of 3
    $145.99 each
    53
    Fri, Aug 30
    53
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    53 Fri, Aug 30
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  • Cut-In Control (41&#176;F) Product Image
    Cut-In Control (41°F)
    SKU: A12-701
    Brand: Ranco
    (3)
    $54.95 each
    60
    Fri, Aug 30
    60
    QtyArrives
    60 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • Remote Bulb Refrigeration Temperature Controller (-30&#176;F to 90&#176;F, 8' Cap) Product Image
    $60.99 each
    $173.97 box of 3
    $57.99 each
    145
    Fri, Aug 30
    145
    QtyArrives
    145 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1-Stage ETC Temp. Control w/ Sensor (120/240V Input) Plastic Enclosure Product Image
    $95.95 each
    $464.75 box of 5
    $92.95 each
    108
    Fri, Aug 30
    108
    QtyArrives
    108 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • Temperature Control<br>2 Inputs, 2 SPDT, 2 Analog Outputs, 1 Sensor Product Image
    $264.99 each
    $758.97 box of 3
    $252.99 each
    157
    Fri, Aug 30
    157
    QtyArrives
    157 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • 1097 ohm Water-resistant Temperature Sensor Product Image
    1097 ohm Water-resistant Temperature Sensor
    SKU: T775-SENS-WR
    Brand: Honeywell
    (2)
    $58.99 each
    $223.96 box of 4
    $55.99 each
    68
    Fri, Aug 30
    68
    QtyArrives
    68 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • Temperature Control<br>2 Inputs, 4 SPDT Relays<br>1 Sensor, NEMA 4X Product Image
    $284.99 each
    $547.98 box of 2
    $273.99 each
    32
    Fri, Aug 30
    32
    QtyArrives
    32 Fri, Aug 30
    Questions? Call 1-888-757-4774
  • Remote Bulb Commercial<br>Temperature Controller<br>55&#176;F- 175&#176;F (20' Capillary) Product Image
    $124.99 each
    108
    Fri, Aug 30
    108
    QtyArrives
    108 Fri, Aug 30
    Questions? Call 1-888-757-4774

Resources

Articles

  • Temperature controllers are used to regulate temperatures without extensive operator involvement. Temperature controllers can be used in a wide range of applications. Certain features should be considered before selecting a temperature controller, with the most important being the controller's temperature range. Other factors that should be considered are the application type, input sensor type, number of outputs, and the type of outputs.

    Pneumatic temperature controllers regulate air and liquid temperatures. They are designed for heating and cooling unit ventilators and fan coil units. Pneumatic temperature controllers operate in three phases. First, the pneumatic temperature controller senses the temperature being monitored. It then attempts to balance its internal lever system. Finally it adjusts its pilot pressure to counterbalance the main lever force. A pneumatic temperature controller can have direct action or reverse action. In a direct acting pneumatic controller, the output signal rises as the temperature rises. The opposite is true for a reverse acting pneumatic temperature controller. Both provide proportional control of pneumatic valves and damper actuators in heating and air conditioning systems. Direct acting and reverse acting controllers are available in one pipe or two pipe configurations. A one pipe configuration is used in low air capacity applications, while a two pipe configuration is used in high air capacity applications. Two pipe controllers are the more popular option on our website.

    Modulating temperature controllers are used to adjust water control or air temperature in ducts, tanks, and similar applications. These controllers should be selected based on the features the application requires. Models with a copper fast response element provide a response time four times faster than standard models. Modulating temperature controllers can have an analog or relay output type.

    Return-air temperature controllers are used to maintain a constant ambient temperature in farm, industrial, or commercial applications. These controls regulate temperature in ventilation, heating, or cooling systems by adjusting the temperature of the air supplied by individual cooling units. A return-air temperature controller regulates the temperature on the supply side of an air handler. This allows a facility to control and supply predictable temperatures, thereby reducing operating costs.

    Ambistat temperature controllers are used for HVAC, agricultural, and industrial applications. An ambistat temperature control regulates a wide temperature range and can be used in many applications. Common applications for these controls are beverage dispensing machines, ice cube machines, bulk milk tanks, dishwashers, crop drying, tobacco curing, and similar applications.

    Electronic temperature controls are the next generation of commercial and agricultural temperature controls. These versatile controls are economical, programmable, and simple to install. A sequencer model and a universal input model are the two unique models available. The sequencer model eliminates the need for a separate time delay device. It uses a time clock scheduler/digital input to control setback and disables output to save energy. It also controls floating actuators with floating outputs. The universal input model can control pressure, humidity, or any variable analog input. A special boiler model is available for boiler control. The staged sequencing model is the best option for applications that require relays to be staged in sequence.

    We carry a wide selection of Honeywell, Ranco, and White Rodgers temperature controllers for residential or commercial applications.
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