PH-I,PH-II,PH-III(BNC+Cable) Pocket pH Meter
Range: 0--14 pH,
Accueacy: ±0.1 pH,
Resolution: 0.1 pH,
Temp.℃: 5—50℃,
Calibration: Two-point at 4.01pH and 6.86pH,
Battery Life: DC 4 x 1.5V