Sinotester PH-2621 Online pH Controller (0.0～14.0pH, ±0.02pH)

- Measuring range: 0.0～14.0pH, T: -9.9~99.9℃
- Resolution: 0.01 pH, T: 0.1℃
- Accuracy: ±0.02pH, T: ±1℃
- Dimension: 136*93*35mm
- Weight: 530g
- Working voltage：4*1.5V (AG-13 type button cell battery)
- 1 point calibration, Online monitor.