| Specification | Details |
| Model | Yasee GLS-77 (GLM-77) Blood Glucose Meter |
| Tested Blood Type | Capillary Whole Blood |
| Sample Size | 0.8 microliters (0.8μL) |
| Measuring Time | 8 seconds |
| Measurement Range | 1.1 to 33.3 mmol/L or 20 to 600 mg/dL |
| Acceptable HCT Range | 25% to 65% |
| Memory Capacity | Up to 180 test results with date and time |
| Operating Temperature | 10°C to 40°C (50°F to 104°F) |
| Operating Humidity | 20% to 80% R.H. |
| Power Supply | One 3V Lithium Battery (CR2032 type) |
| Battery Life | Approximately 1,000 tests |
| Auto Shut-Off | Automatically turns off after 3 minutes of inactivity to save power |
| Certifications | CE / ISO13485 |