Overview Ideal and necessary tool for gardeners, vegetable and fruit growers, and all those who plant trees and grass You can take good care of your plants. For outdoor & indoor plants, gardens & grass lawn. Simply insert the meter into the soil, switch to the setting you want to measure and read the scale. To avoid damaging the electrode, please clean the electrode after each use, do not use in soil with stones and insert forcibly. Metric to British system conversion for temperature Notice function for low power status Easy to operate, light weight and portable to carry Automatic off function for energy saving, the unit will be automatically off after 5 minutes disabling. Temperature measuring range: -9~+50(16~122), (accuracy: 1/1) PH measuring range: 3.5-9.0 Working Temperature: +5~+40 Color: Yellow + Black Main Unit Size: Approx.122*63*36mm(L*W*H) Test Probe Size: Approx.5*200mm(D*L) Note: Power supply: One 9V block batteries(not included)