Differential Thermostat KIT

The ONE Indicator Basic Differential Controller is the same as Basic Differential Controller with TWO indicators except it does not have a heat indicator lamp. This is also known as a differential thermostatic controller. This is the simplest, least expensive differential controller kit that I make. The  AC/DC controller is my most expensive, deluxe, fully assembled controller.

This Basic Differential Controller is easy to build from a schematic and even easier to build with a KIT containing all the parts and a set of instructions. The quarter is not part of the KIT and you'll have to supply your own solder, but I'll throw in a set of thermistors, 4 mounting screws, 4 standoffs and free shipping for $55. If you're going to drive an AC pump you'll need a tiny DC wall transformer to power the controller. I do have have wall transformers but if you have a little 9 Volt or 12 VDC wall transformer laying around you're all set. Here is basically what you get with the basic differential controller:    

• Adjustable differential
• Short circuit protection from probe wires built into design 
• DC pump regulation up to 300 Watts
• AC pump regulation up to 300 Watts
• Set of rugged thermistors included with purchase
• Dependability
• Easy operation
• Easy assembly
• 1 year guarantee and support with assembled unit

 

    

When mounted the Basic Differential Controller would appear as illustrated above. 

Basic Differential Controller KIT 1 LED + 2 probes FREE shipping      $55 

 

     Basic Differential Controller Kit  2 LED + probes    FREE SHIPPING                                  $65

    Basic Differential Controller assembled + probes    FREE SHIPPING                                 $85

    Differential Thermostat with bar graph + probes                                                                     $125

     Differential Thermostat with one monitor + probes                                                                $125

     Differential Thermostat with two monitors + probes                                                              $150

     Solar Heat Controller with external relay + probes                                                                 $199

    Temperature Monitoring Station                                                                                                     $75

    Fahrenheit Temperature Probes                                                                                                     $10

    Thermistor Temperature Probes                                                                                                     $10

    Solar Heat Controller Probes                                                                                                            $10

    DC 9 volt Wall Adapter                                                                                                                        $10

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