This instrument is a multi-functional electronic digital soil analyzer, is a professional soil quality measurement equipment. It mainly tests soil environmental ilumination,environmental humidity, soil moisture content, soil temperature and soil ph. The instrument USES 4 AAA batteries with low power display reminder. With backlight LCD display parameters,simple and clear. The 18cm probe ADAPTS to the test of soil environment. The product is small in structure,suitable for ergonomics, simple in operation, easy to carry,and improves the testing efficiency. It is widely used in flowers, flowers and plants, and landscaping. Name: Soil Survey Instrument Working temperature:+5 Celsius - +40 Celsius Power supply: 4 x AAA batteries(not include) Power-saving automatic shutdown function: After five minutes, there is no automatic shutdown of any operation Note: please read the manual carefully before use. The main part of the product should not be immersed in mud or water solution when working; the main part of the product should not be immersed in water or rain. Do not insert the product probe too hard into the soil, or it will damage the instrument. colour:Orange Material:Plastic + Metal size:317 x 57mm Package Contents: 1 x 5-in-1 Soil Tester Moisture Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.