The single-output PlugnGrow Day Night Temperature Controller with external probe maintains temperatures for the most favorable indoor growing conditions. This consistent instrument detects the ambient temperature via an external sensor (on a 20 cable) and activates a heating or cooling unit according to predetermined day and night settings (adjustable from 50 to 100 degrees Fahrenheit or 10 to 38 degrees Celsius). Controller has a 120-volt, 15-amp capacity and includes a three-year war  

$84.79

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