Png 030 Humidity Display Grow Media TERPINATOR can be use along TERPINATOR can be use along with any nutrient program equipment and other clean surfacesExterior scaffold coverRoom separator dividerConcrete curing coverCovering for large materials outside for weather protectionInstant all purpose coverInterior moisture barrier insulator for unprotected windowsPainting drop cloth: use to cover carpets and floorsWaterproof exterior storage coverCamping tent coverSun shield reflects heat (white side)Landscape nursery ground cover for level beds to prevent weedsCover beneath decks Change from humidification to dehumidification with a push of a button Displays ambiant relative humidityDay and night setpoints adjustable from 20% to 90%Adjustable differentialOperating mode: humidification or dehumidification3 year warranty20AMPS 120V 60HZMade in North America