The single-output Plug‘n’Grow Day & Night Relative Humidity Display
Controller with adjustable differential precisely monitors and
maintains moisture levels in any greenhouse or indoor garden. Unit
displays the ambient relative humidity and features adjustable day and
night triggers from 5 to 100 percent humidity. When levels surpass or
drop below the predetermined points, the controller will activate
connected ventilation, humidifying or dehumidifying equipment (not to
exceed 120 volts or 15 amps). Differential is flexible from ±2.5 to
±12.5 percent. Reliable unit includes a three-year manufacturer’s
warranty and daily technical support.