Temperature Controllers

  • $49.95 each
    $239.75 box of 5
    $47.95 each
    346
    Thu, Feb 28
    346
    QtyArrives
    346 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 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
    157
    Thu, Feb 28
    157
    QtyArrives
    157 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 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
    133
    Thu, Feb 28
    133
    QtyArrives
    133 Thu, Feb 28
    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
    119
    Thu, Feb 28
    119
    QtyArrives
    119 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 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
    125
    Thu, Feb 28
    125
    QtyArrives
    125 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 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
    124
    Thu, Feb 28
    124
    QtyArrives
    124 Thu, Feb 28
    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
    89
    Thu, Feb 28
    89
    QtyArrives
    89 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • Temperature Sensor for Ranco Control
    SKU: 1309007-044
    Brand: Ranco
    (7)
    $13.75 each
    $65.75 box of 5
    $13.15 each
    163
    Thu, Feb 28
    163
    QtyArrives
    163 Thu, Feb 28
    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
    71
    Thu, Feb 28
    71
    QtyArrives
    71 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 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
    87
    Thu, Feb 28
    87
    QtyArrives
    87 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 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
    96
    Thu, Feb 28
    96
    QtyArrives
    96 Thu, Feb 28
    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
    55
    Thu, Feb 28
    55
    QtyArrives
    55 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • $62.95 each
    $362.70 box of 6
    $60.45 each
    104
    Thu, Feb 28
    104
    QtyArrives
    104 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • $154.95 each
    $446.85 box of 3
    $148.95 each
    Wed, Mar 27 – Wed, Apr 24
    Arrives
    Wed, Mar 27 – Wed, Apr 24
    Questions? Call 1-888-757-4774 or LiveChat Img Live Chat
  • $131.95 each
    $380.85 box of 3
    $126.95 each
    Wed, Mar 27 – Wed, Apr 24
    Arrives
    Wed, Mar 27 – Wed, Apr 24
    Questions? Call 1-888-757-4774 or LiveChat Img Live Chat
  • Temperature Control 2 Inputs, 4 SPDT Relays 1 Sensor
    SKU: T775B2040
    Brand: Honeywell
    (5)
    $278.95 each
    $803.85 box of 3
    $267.95 each
    74
    Thu, Feb 28
    74
    QtyArrives
    74 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 1097 Ohm Standard Temperature Sensor
    SKU: 50021579-001
    Brand: Honeywell
    $43.95 each
    $210.75 box of 5
    $42.15 each
    86
    Thu, Feb 28
    86
    QtyArrives
    86 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • 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
    69
    Thu, Feb 28
    69
    QtyArrives
    69 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • Single Stage Digital Temp Control w/ 19-1/2' Leads (120/240V SPDT)
    SKU: A421ABC-06C
    Brand: Johnson Controls
    (1)
    $71.95 each
    $344.75 box of 5
    $68.95 each
    28
    Thu, Feb 28
    28
    QtyArrives
    28 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • Cut-In Control (41°F)
    SKU: A12-701
    Brand: Ranco
    (3)
    $51.35 each
    74
    Thu, Feb 28
    74
    QtyArrives
    74 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • $307.95 each
    $591.90 box of 2
    $295.95 each
    31
    Thu, Feb 28
    31
    QtyArrives
    31 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • $61.95 each
    $178.35 box of 3
    $59.45 each
    96
    Thu, Feb 28
    96
    QtyArrives
    96 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • Two Stage Temperature Control w/ Sensor (24V Input)
    SKU: ETC-212000-000
    Brand: Ranco
    (4)
    $119.95 each
    $574.75 box of 5
    $114.95 each
    32
    Thu, Feb 28
    32
    QtyArrives
    32 Thu, Feb 28
    Questions? Call 1-888-757-4774
  • $258.95 each
    $746.85 box of 3
    $248.95 each
    Wed, Mar 20 – Wed, Mar 27
    Arrives
    Wed, Mar 20 – Wed, Mar 27
    Questions? Call 1-888-757-4774 or LiveChat Img Live Chat

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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