
For starting the fan under the boat cover and the heater in the engine compartment. 5 degrees Fahrenheit. The fan is currently running constantly, so I'm giving it 4 stars. You set the temperature and buffer range for top and bottom. When the temperature is above the upper buffer, the cooling output will be turned on until the temperature reaches the set temperature. When the temperature falls below the lower buffer, the heating output turns on until the temperature reaches the set point. I want to share them. Set the cooling to turn on when the temperature hits 120 and cool down to 90, then heat up at 50 and turn off at 65, like in a greenhouse. Anyway, I need two of these, or I'll have to set it to cool from 120 to 70 and warm from 50 to 70. 70 is the main target temperature.

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