# K250085: On Call® Sure GK Blood Glucose & Ketone Monitoring System; On Call® Sure Sync GK Blood Glucose & Ketone Monitoring System

- Pathway: 510(k) (Traditional)
- Applicant: ACON Laboratories, Inc.
- Decided: Oct 10, 2025 after 270 days
- Product code: NBW (System, Test, Blood Glucose, Over The Counter)
- Device class: 2
- Regulation: 21 CFR 862.1345
- Recalls of this device: none
- Data: FDA decisions to Oct 25, 2026; recalls to Oct 12, 2026

## Lineage
No predicates in its family tree.
No later device cites it as a predicate yet.
0 of 1 device in its family (counting itself) have a Class I recall.

## Predicates on the family tree (from the FDA summary)
- None. FDA’s file for it is a 510(k) statement, which names no predicate.

## Indications for use
The On Call® Sure GK Blood Glucose & Ketone Monitoring System is comprised of the On Call® Sure GK Blood Glucose & Ketone Meter, the On Call® Sure Blood Glucose Test Strips, and the On Call® Sure Blood Ketone Test Strips. The On Call® Sure GK Blood Glucose & Ketone Monitoring System is intended to quantitatively measure blood glucose or blood ketone in fresh capillary whole blood from the fingertip. The system is intended for self-testing by people with diabetes at home as an aid in monitoring the effectiveness of diabetes control program. The system is for in vitro diagnostic use. It should only be used by a single patient and should not be shared. It is not intended for diagnosis or screening of diabetes or for neonatal use. The On Call® Sure Sync GK Blood Glucose & Ketone Monitoring System is comprised of the On Call® Sure Sync GK Blood Glucose & Ketone Meter, the On Call® Sure Blood Glucose Test Strips, and the On Call® Sure Blood Ketone Test Strips. The On Call® Sure Sync GK Blood Glucose & Ketone Monitoring System is intended to quantitatively measure blood glucose or blood ketone in fresh capillary whole blood from the fingertip. The system is intended for self-testing by people with diabetes at home as an aid in monitoring the effectiveness of diabetes control program. The system is for in vitro diagnostic use. It should only be used by a single patient and should not be shared. It is not intended for diagnosis or screening of diabetes or for neonatal use.

Source page: https://510kreport.com/device/K250085
Methodology: https://510kreport.com/methodology