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Temperature Controllers

  • $52.35 each
    $254.75 box of 5
    $50.95 each
    383
    Wed, Jul 10
    383
    QtyArrives
    383 Wed, Jul 10
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  • 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
    803
    Wed, Jul 10
    803
    QtyArrives
    803 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 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
    99
    Wed, Jul 10
    99
    QtyArrives
    99 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 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
    851
    Wed, Jul 10
    851
    QtyArrives
    851 Wed, Jul 10
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  • Refrigeration Temp Ctrl. w/ 5' Capillary (-30°F to 90°F)
    SKU: 1609-101
    Brand: White Rodgers
    (8)
    $49.85 each
    $239.75 box of 5
    $47.95 each
    106
    Wed, Jul 10
    106
    QtyArrives
    106 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 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
    334
    Wed, Jul 10
    334
    QtyArrives
    334 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 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
    276
    Wed, Jul 10
    276
    QtyArrives
    276 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • Temperature Sensor for Ranco Control
    SKU: 1309007-044
    Brand: Ranco
    (7)
    $14.75 each
    $70.75 box of 5
    $14.15 each
    17
    Wed, Jul 10
    17
    QtyArrives
    17 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 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
    83
    Wed, Jul 10
    83
    QtyArrives
    83 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 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
    119
    Wed, Jul 10
    119
    QtyArrives
    119 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • Electronic Temperature Controller (24/120/208/240 Volts AC)
    SKU: 16E09-101
    Brand: White Rodgers
    (4)
    $67.95 each
    $263.80 box of 4
    $65.95 each
    79
    Wed, Jul 10
    79
    QtyArrives
    79 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $61.99 each
    $353.94 box of 6
    $58.99 each
    95
    Wed, Jul 10
    95
    QtyArrives
    95 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $134.99 each
    $386.97 box of 3
    $128.99 each
    38
    Wed, Jul 10
    38
    QtyArrives
    38 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $156.99 each
    $449.97 box of 3
    $149.99 each
    24
    Wed, Jul 10
    24
    QtyArrives
    24 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 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
    88
    Wed, Jul 10
    88
    QtyArrives
    88 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • Remote Bulb Temperature Control (-30° to 100°F)
    SKU: A19BBC-2C
    Brand: Johnson Controls
    (4)
    $81.95 each
    $394.75 box of 5
    $78.95 each
    556
    Wed, Jul 10
    556
    QtyArrives
    556 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1097 Ohm Standard Temperature Sensor
    SKU: 50021579-001
    Brand: Honeywell
    $45.49 each
    $216.95 box of 5
    $43.39 each
    161
    Wed, Jul 10
    161
    QtyArrives
    161 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • Cut-In Control (41°F)
    SKU: A12-701
    Brand: Ranco
    (3)
    $54.95 each
    60
    Wed, Jul 10
    60
    QtyArrives
    60 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • 1097 ohm Water-resistant Temperature Sensor
    SKU: T775-SENS-WR
    Brand: Honeywell
    (2)
    $58.99 each
    $223.96 box of 4
    $55.99 each
    78
    Wed, Jul 10
    78
    QtyArrives
    78 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $60.99 each
    $173.97 box of 3
    $57.99 each
    91
    Wed, Jul 10
    91
    QtyArrives
    91 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $95.95 each
    $464.75 box of 5
    $92.95 each
    58
    Wed, Jul 10
    58
    QtyArrives
    58 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $264.99 each
    $758.97 box of 3
    $252.99 each
    85
    Wed, Jul 10
    85
    QtyArrives
    85 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $299.99 each
    $579.98 box of 2
    $289.99 each
    32
    Wed, Jul 10
    32
    QtyArrives
    32 Wed, Jul 10
    Questions? Call 1-888-757-4774
  • $124.99 each
    73
    Wed, Jul 10
    73
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    73 Wed, Jul 10
    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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