This digital humidity control controller is with wide humidity measuring range and controlling range, comes with a humidity controller sensor probe with cable. Hunidity sensor uses a high-precision capacitive faster chip which has the advantage of high accuracy to refect. Humidity measuring range is 1% ~ 99% RH and control range is 1% RH. Humidification and dehumidification can be set through the menu, the parameters has been set the power outage permanent memory function.