Specification of Soil Ph meter: 

PH measuring range: 2.0PH~8.5PHAccuracy: ±0.2PHResolution: 0.01PH2. Soil temperature measuring range: -10°C to 60°CTemperature accuracy: ±1.5°CResolution: 0.1°C3. Soil moisture measuring range: 1%~84% Moisture accuracy: ±4%Resolution: 0.1% 4. Operating temperature:-10℃~60℃5. Power supply: 2*1.5V AAA battery6. Size: Ф65x263mm7. Probe length: 210mm8. Product weight: 107g9. Factory calibrated, no additional calibration required

PH328 Digital Backlight Soil Tester 3 in 1 PH/ Moisture/ Temperature Soil PH Test Probe Temp Humidity Meter for Agriculture