METER: Hemoglobin in fresh blood Measuring Principle: Optical reflectance  Strip: H12 Hemoglobin Test Strips Measuring time: Less than 30 seconds Measuring range: 4.0g/dL ~ 24.0g/dL. Results under 4.0g/dL and over 24.0g/dL will display as “Lo” and “Hi” respectively so as to indicate the result which is out of range. Display: LCD, test result displaying in SI Weight: < 58g (Battery included) Outer dimension: 102mm×50mm×19mm Power: DC 6V (Two CR2032 Battery) Operating Ranges: 15 ~ 30°C; RH ≤80% non-condensing Ultimate Ranges: -20 ~55°C ; RH < 90% non-condensing Others: Internal trouble check and display Available life: 8 years