| Model |
MA-pH920 |
MA-pH930 |
| pH Range |
-2.000~20.000pH |
| pH Accuracy |
±0.002pH |
| pH Resolution |
0.1, 0.01, 0.001pH, selectable |
| pH Calibration Points |
1~5 points |
| pH Calibration Solutions |
USA, NIST, DIN, 2 custom buffers |
| ORP mV Range |
±1999.9mV |
| ORP Relative mV Range |
±1999.9mV |
| ORP Resolution |
0.1, 1mV, selectable |
| ORP mV Accuracy |
±0.2mV |
| ORP Calibration Points |
1 point |
| Ion Range |
/ |
0.001~19999ppm, mg/L, mol/L (depending on the range of ISE) |
| Ion Resolution |
/ |
0.001, 0.01, 0.1, 1 |
| Ion Accuracy |
/ |
±0.5% F.S (Monovalent), ±1% F.S (Divalent) |
| Ion Measurement Units |
/ |
ppm, mg/L, mol/L, mmol/L |
| Ion Calibration Points |
/ |
2 to 5 points |
| Ion Calibration Solutions |
/ |
0.001, 0.01, 0.1, 1, 10, 100, 1000, 10000 |
| Temp. Range |
0~105°C/32~221°F |
| Temp. Resolution |
0.1°C/0.1°F |
| Temp. Accuracy |
±0.5°C/±0.9°F |
| Temp. Offset Calibration |
1 point, reading ±10°C |
| Temp. Compensation |
0~100°C, manual or automatic |
| Stability Criteria |
Low or High |
| Calibration Due Alarm |
1 to 30 days or Off |
| Slope/Offset Display |
Yes |
| Hold Function |
Manual or auto-endpoint |
| Memory |
500 data sets |
| Communication Interface |
USB |
| Connector |
BNC, 3.5mm jack socket |
| Display |
LCD (125*100mm) |
| Power Requirements |
DC5V power adapter |
| Dimensions (W*D*H) mm |
210*188*60 |
| Package Size (W*D*H) mm |
310*240*180 |
| Net Weight (kg) |
1.5 |
| Gross Weight (kg) |
1.7 |