Nipro Diagnostic's True Metrix Blood Glucose Test Strips box of 50 x 4 features advanced technologies - a complex algorithm, chemistry and electrodes, the meter and the test strip work together as part of the True Metrix Self-Monitoring Blood Glucose System to produce accurate results. With True Metrix accuracy is confidence. Triple sense technology automatically detects, analyzes and corrects variables in each blood sample to ensure proven accuracy and confidence in results.