Features: High accuracy and wide humidity measuring . Stable performance supports long time use. With large and clear display for better readability. Two modes adjustable dehumidification mode and humidification mode. Applied to hatching device refrigerator greenhouse cultivation freezer ect. Specifications: Model: ZFX-13001 Working voltage: 24V 220 V (optional) Output: 10A Measure : 1%~99%RH Measure accuracy: ± 1%RH Item size: 85 * 75 * 34.5mm / 3.35 * 2.95 * 1.36in Package size: 100 * 85 * 50mm / 3.94 * 3.35 * 1.97in Package weight: 127g / 4.48ounces Note: 1.Due to the different display screen and light effect the actual color of the item might be slightly different from the color showed on the pictures. 2.Please allow a little measuring deviation due to manual measurement. Package List: 1 * Digital Humidity Controller with Sensor-Wire