| Parameters/Model | POL-568 | POL-533 | POL-537 |
| Measurement mode | Optional rotation, specific rotation, sugar degree and concentration (Custom) |
| Frequently used methods | 300 |
| Light source | Light-emitting diode (LED) (up to 10,000 hours) + precision interference filters | 20W Tungsten halogen lamp |
| Working wavelength | 589.44 nm (Sodium D Spectrum) | Standard: 546, 589 nm |
| Optional: 365, 405, 436, 578, 633nm |
| Measurement range | ±90° (Optional Rotation) ±259° Z (Sugar) |
| Minimum reading | 0.0001° | 0.001° | 0.001° |
| Accuracy | ±0.003° | ±0.004° | 0.004° |
| Min. transmission of samples able to be measured | 0.01% | 0.05% | 0.10% |
| Repeatability | ≤0.002° |
| Response speed | 8°/s |
| Measurement time | 6 Times/26s |
| Sample temperature control | Yes |
| Temperature control mode | Peltier (Built-in) |
| Temperature control range | 10-50℃ |
| Temperature control accuracy | ±0.2℃ |
| Operation system | WINDOWS |
| Display | 8-inch color dot matrix touch LCD |
| Calibration method | Multi-point automatic calibration |
| Data storage | 16G Database |
| GMP Regulations | Qualified |
| Output communication interface | USB/Keyboard/Mouse/University Printer/VGA/Ethernet/Optional wireless card for wireless internet access |
| Test tubes | 200mm 100mm (regular) 100mm (temp. control) |
| Optional tubes | 50mm (regular) 200mm (temp. control) |
| Weight (Gross) | 36 kg |
| Dimensions | 860mm×510mm×470mm |