Multi-parameter pH/Conductivity Salinity meter เครื่องวัดคุณภาพน้ำแบบมัลติพารามิเตอร์ แบบปากกา ยี่ห้อ Ohaus รุ่น ST20M-C
| Model |
Specification |
ST20M-B |
ST20M-C |
| Measurement Range |
pH |
0 – 14 |
| Conductivity |
0 … 1999 µS/cm |
0 … 19.99 mS/cm |
| TDS |
0 … 1000 mg/L |
N/A |
| Salinity |
N/A |
0.0–10.0 ppt |
| Temperature |
0 – 99.0 °C |
| Resolution |
pH |
0.01 pH |
| Conductivity |
1 µS/cm |
0.01 mS/cm |
| TDS |
1 mg/L |
N/A |
| Salinity |
N/A |
0.1 ppt |
| Temperature |
0.1 °C |
| Accuracy |
pH |
± 0.05 pH |
| Conductivity |
± 2 % Full Scale |
| TDS |
± 2 % Full Scale |
N/A |
| Salinity |
N/A |
± 2 % Full Scale |
| Temperature |
± 0.5 °C |
| ATC |
Yes, with temperature display |
| ATC Range |
0 – 45 °C |
| Calibration |
pH |
3 point |
| Conductivity |
1 point |
| TDS |
N/A |
| Salinity |
N/A |
| IP Grade |
IP67 |
| Dimensions |
185 × 45 × 38 mm |
| Weight |
110 g |
| Batteries |
4 × 1.5V |
| Battery Life |
100 hours |
| Warranty |
1 year |