Accurate, reliable and maintenance-free： Self-calibration for each test Accurate results in approximately 5 minutes Dry chemistry method, no reagent pack required, no carry-over contamination Lightweight and portable： Rechargeable lithium battery: more than 50 tests Size: 235mm × 210mm × 160mm Weight: 3±0.5 kg (including battery） Easy-to-use： Quick start tutorial 8-inch full HD touchscreen Smart identification in cartridge： Feedback of cartridge insertion Identification of the cartridge expiration date Automatic quality control： Regular QC reminders Power on Self-Test Dual quality control: electronic simulator and controls