| Specifications | CT-6020A | |
| Display | LCD, size : 20 mm x 27 mm. | |
| Measurement Range | pH | 0.00 to 14.00 pH. |
| Resolution | pH | 0.01 pH. |
| Accuracy | pH | ±0.02 pH * After calibration. |
| Data Hold | Freeze the display reading. | |
| pH Calibration | pH6.86, pH 4.01 or pH 9.18, 3 points calibration. | |
| Operating Humidity | Less than 80% RH. | |
| Dimension | 188 x40 mmx35mm * Meter with pH electrode. | |
| Weight | 136g (included electrode). | |
Source: https://www.meterstesters.com/products/ph-meters/pen-ph-meter-ct-6020a.html