Temperature Controllers

  • $49.95 each
    $239.75 box of 5
    $47.95 each
    548
    Fri, May 3
    548
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    548 Fri, May 3
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  • Single Stage, NEMA 1 Digital Temp Control (120/240VAC SPDT)
    SKU: A421ABC-02C
    Brand: Johnson Controls
    (16)
    $65.95 each
    $319.75 box of 5
    $63.95 each
    165
    Fri, May 3
    165
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    165 Fri, May 3
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  • Single Stage Temperature Control w/ Sensor (24V Input)
    SKU: ETC-112000-000
    Brand: Ranco
    (15)
    $52.95 each
    $254.75 box of 5
    $50.95 each
    123
    Fri, May 3
    123
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    123 Fri, May 3
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  • 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
    39
    Fri, May 3
    39
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    39 Fri, May 3
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  • Single Stage Digital Temperature Control (24V, SPDT)
    SKU: A421GBF-02C
    Brand: Johnson Controls
    (2)
    $62.95 each
    $304.75 box of 5
    $60.95 each
    65
    Fri, May 3
    65
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    65 Fri, May 3
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  • Refrigeration Temp Ctrl. w/ 5' Capillary (-30°F to 90°F)
    SKU: 1609-101
    Brand: White Rodgers
    (6)
    $49.85 each
    $239.75 box of 5
    $47.95 each
    91
    Fri, May 3
    91
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    91 Fri, May 3
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  • 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
    40
    Fri, May 3
    40
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    40 Fri, May 3
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  • Temperature Sensor for Ranco Control
    SKU: 1309007-044
    Brand: Ranco
    (7)
    $13.75 each
    $65.75 box of 5
    $13.15 each
    105
    Fri, May 3
    105
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    105 Fri, May 3
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  • 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
    89
    Fri, May 3
    89
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    89 Fri, May 3
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  • 2-Stage Temperature Control w/ Sensor (120/240V Input)
    SKU: ETC-211000-000
    Brand: Ranco
    (10)
    $95.41 each
    $459.75 box of 5
    $91.95 each
    79
    Fri, May 3
    79
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    79 Fri, May 3
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  • Replacement PTC Sensor with 6-1/2' (2 m) Leads
    SKU: A99BB-200C
    Brand: Johnson Controls
    (5)
    $25.95 each
    $124.75 box of 5
    $24.95 each
    50
    Fri, May 3
    50
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    50 Fri, May 3
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  • $62.95 each
    $365.70 box of 6
    $60.95 each
    90
    Fri, May 3
    90
    QtyArrives
    90 Fri, May 3
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  • $155.95 each
    $446.85 box of 3
    $148.95 each
    6
    Fri, May 3
    6
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    6 Fri, May 3
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  • $134.95 each
    $386.85 box of 3
    $128.95 each
    53
    Fri, May 3
    53
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    53 Fri, May 3
    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
    18
    Fri, May 3
    18
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    18 Fri, May 3
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  • Temperature Control 2 Inputs, 4 SPDT Relays 1 Sensor
    SKU: T775B2040
    Brand: Honeywell
    (5)
    $283.95 each
    $815.85 box of 3
    $271.95 each
    67
    Fri, May 3
    67
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    67 Fri, May 3
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  • 1097 Ohm Standard Temperature Sensor
    SKU: 50021579-001
    Brand: Honeywell
    $43.95 each
    $209.75 box of 5
    $41.95 each
    115
    Fri, May 3
    115
    QtyArrives
    115 Fri, May 3
    Questions? Call 1-888-757-4774
  • Cut-In Control (41°F)
    SKU: A12-701
    Brand: Ranco
    (3)
    $51.35 each
    60
    Fri, May 3
    60
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    60 Fri, May 3
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  • 1097 ohm Water-resistant Temperature Sensor
    SKU: T775-SENS-WR
    Brand: Honeywell
    (2)
    $56.95 each
    $219.80 box of 4
    $54.95 each
    59
    Fri, May 3
    59
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    59 Fri, May 3
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  • 1/2" Well (2-3/8"long)
    SKU: WEL11A-601R
    Brand: Johnson Controls
    (6)
    $35.95 each
    $172.75 box of 5
    $34.55 each
    41
    Fri, May 3
    41
    QtyArrives
    41 Fri, May 3
    Questions? Call 1-888-757-4774
  • $61.95 each
    $179.85 box of 3
    $59.95 each
    123
    Fri, May 3
    123
    QtyArrives
    123 Fri, May 3
    Questions? Call 1-888-757-4774
  • $307.95 each
    $589.90 box of 2
    $294.95 each
    28
    Fri, May 3
    28
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    28 Fri, May 3
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  • $267.95 each
    $767.85 box of 3
    $255.95 each
    Fri, May 24 – Mon, Jun 3
    Arrives
    Fri, May 24 – Mon, Jun 3
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  • $125.95 each
    66
    Fri, May 3
    66
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    66 Fri, May 3
    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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