Features: performance and high work efficiency Priority material, precise sensing A 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, cultivation and other fields Product Name: Soil Controller Model: STC-3029 Supply voltage: DC12V 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 are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.