With the temperature sensor on-board, this product was designed to go inside of an
enclosure to keep the temperature of that enclosure within a window using a Peltier
A typical application would be an enclosure for a security camera that is to be left
outside in a harsh environment. This board would cool when the temperature got above
the predetermined threshold, and would switch the polarity on that cooler to heat
the enclosure when the temperature dropped below the predetermined threshold.