This digital soil ph meter 4 in 1 ph meter for soil testing moisture, ph, temperature, artificial and Light and PH Tester offers 4 important measurements: ph-value, temperature, moisture, and environment sunlight intensity. The sensitive 200mm probe and light sensor module window provide 5 units of accurate & precise measured results, ph, moisture, sunlight, °c & °f (soil & environment). In addition to the features, it also has an oversized LCD with a clear display, backlight, and auto power off. This soil ph temperature meter instrument is a great tool for measuring the growing conditions of all kinds of indoor and outdoor plants as well as garden evanescence. The soil testing kit agriculture a very useful one in lawn care to determine soil conditions in different areas of the garden and finding correct grass seed. Features: 1. 4 in 1 soil tester, ph meters for soil plants, and lawns 2. Measures sunlight (9 levels), soil moisture (5 levels), soil ph (12 levels), and temperature (°c & °f) 3. 8 inches or 200mm long probe 4. Auto shut the power off 5. Survey light intensity of current environment 6. Fast and precise measurements 7. Backlight feature 8. A great tool to help fix your lawn when grass does not want to grow in certain areas of your yard specifications: 2. Sunlight (9 levels): low-, low, low+, nor-, nor, nor+, HGH-, HGH, hgh+ 3. Moisture (5 levels): dry+, dry, nor, wet, wet+ 4. Ph value (12 levels): 3. 5 ~ 9. 0ph 5. Temperature: -9~50°c (16~122°f) 6. Resolution 7. Temperature: 1°c/1°f 8. Ph: 0. 5ph 9. Low battery indicator 10. Power supply: 9v battery (not included). The unit will be switched off automatically if it hasn’t been used for 5 minutes. It can only be used in soil, so please don’t use it in water or other solutions. Don’t forget to take off the protection cap of the probe before you start testing. Don’t leave the probe in the soil longer than necessary to avoid damage. Avoid dust and too much water (the meter is water-resistant, but not waterproof). Wipe the probe clean and dry with a soft cloth before taking another test and after finishing the tests.