Description:Mini digital humidity controller, can set a high or a low humidity limit, when the humidity is beyond the compass of limits, it will humidification or dehumidification automatically.With humidity sensor, uses high precision capacitive chip, high accuracy and wide humidity measuring range.With large and clear LED display for better readability.All parameters can be set to default setting after short circuit.Mini size, lightweight and portable.Specifications:Size: 75*34*85mm.Opening size: 71 * 29mm.Operating Voltage: AC 110V 220V DC 12VHumidity control range: 1% ~ 99% RH.Humidity measurement accuracy: ± 1%RH.Power consumption: ≤3W.Compatible with humidification and dehumidification control.Hysteresis adjustable. (1%RH-50%RH).