PH / DO - meter

pH range: (-2.00-19.99)pH Accuracy: ±0.02pH mV: -1999.9mV-0-1999.9mV DO range: 0-20.00 mg/L(ppm), 0-200.0% Resolution: 0.01/0.1mg/L(ppm), 0.1/1% Accuracy: 0.4mg/L, 0.3% Response time: ≤30s(25℃, 90% response) Temperature: 0-100℃