high accuracy Portable PH meters

Measuring range:
PH: 0.00 to 14.00pH
mV: 0 to ±1999mV
temp: 0 to 100℃
Accuracy: PH: 0.01pH
mV: ±0.1% F* S±1 digit
temp: ≤±0.5℃
Resolution: 0.01pH; 1mV; 0.1℃
Display: 4-digital LCD
Input resistance: ≥1×1012Ω
Dimension: 185mm(L)×82mm(W)×45mm(H)
Weight: 570g