Specification of Soil Ph meter: 

PH measuring range: 2.0PH8.5PHAccuracy: ±0.2PHResolution: 0.01PH2. Soil temperature measuring range: -10 degree to 60 degree Temperature accuracy: ±1.5 degree Resolution: 0.1 degree 3. Soil moisture measuring range: 1 percent 84 percent Moisture accuracy: ±4 percent Resolution: 0.1 percent 4. Operating temperature:-10 degree 60 degree 5. Power supply: 21.5V AAA battery6. Size: Ф65x263mm7. Probe length: 210mm8. Product weight: 107g9. Factory calibrated, no additional calibration required

PH328デジタルバックライト土壌テスター3in1PH/水分/温度土壌PHテストプローブ農業用温度湿度計