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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
    609
    Thu, Aug 29
    609
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    609 Thu, Aug 29
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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
    643
    Thu, Aug 29
    643
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    643 Thu, Aug 29
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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
    156
    Thu, Aug 29
    156
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    156 Thu, Aug 29
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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
    689
    Thu, Aug 29
    689
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    689 Thu, Aug 29
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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
    115
    Thu, Aug 29
    115
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    115 Thu, Aug 29
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  • 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
    243
    Thu, Aug 29
    243
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    243 Thu, Aug 29
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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
    262
    Thu, Aug 29
    262
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    262 Thu, Aug 29
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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
    130
    Thu, Aug 29
    130
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    130 Thu, Aug 29
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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
    88
    Thu, Aug 29
    88
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    88 Thu, Aug 29
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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
    104
    Thu, Aug 29
    104
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    104 Thu, Aug 29
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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
    63
    Thu, Aug 29
    63
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    63 Thu, Aug 29
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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
    116
    Thu, Aug 29
    116
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    116 Thu, Aug 29
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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
    Thu, Aug 29
    130
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    130 Thu, Aug 29
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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
    7
    Thu, Aug 29
    7
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    7 Thu, Aug 29
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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
    110
    Thu, Aug 29
    110
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    110 Thu, Aug 29
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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
    360
    Thu, Aug 29
    360
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    360 Thu, Aug 29
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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
    56
    Thu, Aug 29
    56
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    56 Thu, Aug 29
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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
    52
    Thu, Aug 29
    52
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    52 Thu, Aug 29
    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
    146
    Thu, Aug 29
    146
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    146 Thu, Aug 29
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  • 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
    109
    Thu, Aug 29
    109
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    109 Thu, Aug 29
    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
    Thu, Aug 29
    157
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    157 Thu, Aug 29
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  • 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
    69
    Thu, Aug 29
    69
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    69 Thu, Aug 29
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  • 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
    34
    Thu, Aug 29
    34
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    34 Thu, Aug 29
    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
    Thu, Aug 29
    108
    QtyArrives
    108 Thu, Aug 29
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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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