Features: performance and high work efficiency Priority material, precise sensing A variety of voltages are available for a wide range of applications Fast response and good interchangeability Widely used in water-saving irrigation, greenhouses, flowers and vegetables, plant cultivation and other fields Product Name: Soil Controller : STC-3029 Supply voltage: AC110-220V Relay: 10A Humidity range: 0-100%RH Control accuracy: 0.1%RH Sensor length: default 1 meter Material: Plastic colour: As shown Package Contents: 1 x Humidity Controller Only the above package content, other products are not included. Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.