brand new and high quality Electronic digital display four unity soil analyzer is the latest device speed test, mainly test the soil ph value, moisture humidity, temperature and plant light intensity, the use of a carbon 9 v batteries, the operation is simple probe length is 200 mm. The instrument by measuring the parameters of the liquid crystal display (LCD). The instrument also has low power indicator and auto power off function. It saves for time and energy, high efficiency. This instrument is suitable for the flowers and grass planting, landscaping 1.measure the current environment of light intensity LOW-, LOW, LOW+, NOR-, NOR, NOR+, HGH-, HGH, HGH + 2.measuring soil water content DRY+,DRY,NOR,WET,WET+ 3.measuring the temperature of the soil, temperature measuring range: - 9 ~ + 50 (16 ~ 122 ), (precision: 1 / 1 ) 4.measure the soil PH value, PH measurement range: 3.5 to 9.0 Working temperature: + 5 ~ + 40 Size:As pictures show you Large screen LCD user interface LED backlight auxiliary lighting, easy reading Metric system transformation temperature Battery is low prompt functions Can save electricity automatic shutdown function, without any operation, 5 minutes automatic shutdown Simple operation, easy to carry Power supply: 9V battery Quantity:1 Pc The use of the specific please see operation manual Note:Due to the difference between different monitors, the picture may not reflect the actual color of the item.. Thank you