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====== temperature controllers ======

[[https://amzn.to/3QFVRka|Temp controllers]] are devices that enable control of other devices above/below a given temperature. Most controllers used in vans will be 12v, but 120vac controllers also exist. 


===== example uses =====

  * add low-temperature cutoff to chargers that lack that feature by either
      * driving the device's control circuit ([[electrical:12v:alternator#disabling_alternator_charging|examples]])
      * or more crudely cutting power getting to the charger in the first place by disconnecting solar, alternator, etc
  * add precise temperature control to crockpots or other devices that lack it

Note:  controlling larger currents directly (like alternator or solar panel input) will use the temp controller to control an external and larger relay.

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