Product review (1 stars): Please, if your serious about keeping your grow space ...
Please, if your serious about keeping your grow space to a particular humidity do not buy this until.  For the cost it simply does not work.  Im trying to dehumidify and the unit ONLY works when setting is on humidify.  If I have it set to 60% it won't turn off until about 75%.  If I try setting it any lower than 60 my fan never turns off even when the space hit 42%. Again when the switch is on dehumidify nothing happens!