4SURE Smart Duo is a blood glucose monitoring system specifically designed for people living with Type 1 diabetes.

Type 1 diabetes means frequent testing, relying on test results to calculate insulin dosing, and a need to test for β-ketones. 4SURE Smart Duo offers everything needed, without compromising on ease of use.

  • Accuracy that exceeds ISO standards*
  • Easy to use
  • Ability to test for β-ketones
  • Rapid reaction time (5 seconds)
  • Results can be transmitted to a smartphone
Available in Germany and the UK only.
4SURE blood glucose test strips combine 4 gold electrodes with GDH-FAD enzyme. The β-ketone test strips have ϐ-Hydroxybutyrate Dehydrogenase as a reagent enzyme.
ISO, the International Organization for Standardization, develops and publishes international standards. EN ISO 15197:2015 was created to assess blood glucose monitoring systems. 4SURE Smart Duo not only passed the strict ISO acceptance criteria, but it exceeded the acceptance criteria.*
Hematocrit levels may vary from person to person and can interfere with glucose readings. 4SURE Smart Duo is designed to rule out possible hematocrit interference (10-70% for β-ketone testing).
Small sample size: 0.5µL.
Pre and post meal markers.
Suitable for drivers (For driving with diabetes, follow DVLA guidelines).
Blood glucose test strip expiration date is 24 months from date of manufacture; opening of vial has no impact on expiration date. β-ketone test strips are individually foil wrapped and have 18 months shelf life.
Automatic glucose control detection.
Bluetooth connectivity.
β-ketone testing possible.
Large, easy to read backlit display.
Strip port indication light.

*Assessment of System Accuracy, Intermediate Measurement Precision, and Measurement Repeatability of a Blood Glucose Monitoring System Based on ISO 15197. Jendrike N, et al., J Diabetes Sci Technol. 2018 Dec 14.

Compatible with
Insert test strip. The meter will turn on automatically and is ready for use when it shows the test strip image, blood drop image, and GLU.
Apply blood sample.
Results after 5 seconds
Read the result after 5 seconds.
B-Ketone Test Result Chart
Diabetes Care
Instructions for use
Diabetes:M Quick Reference Guide
Diabetes Care
4SURE Smart Duo Brochure
Diabetes Care
4SURE Smart Duo Whitepaper
Diabetes Care
4SURE Smart Duo Datasheet
Diabetes Care
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