Shop On Call glucometers and blood glucose test strips from Microsidd India, including the popular On Call Plus and On Call Extra blood glucose monitoring systems from ACON.
This collection brings together compatible On Call meters, test strips, starter kits, higher-quantity strip packs and individually foil-packed strip options for home blood glucose monitoring and professional use.
Important compatibility notice:
On Call Plus Test Strips are designed for the On Call Plus system.
On Call Extra Test Strips are designed for the On Call Extra system.
These two strip families should not be treated as interchangeable.
If you are unsure which meter or strip you own, read our On Call Glucometers & Test Strips Complete Guide before ordering.
On Call Plus is a well-established ACON blood glucose monitoring system with its own compatible On Call Plus Test Strips.
Microsidd currently offers multiple On Call Plus options for individual users, families, clinics and customers requiring larger quantities of test strips.
For the complete Plus range, visit:
Shop the On Call Plus Glucometer & Test Strips Collection →
On Call Extra is the newer On Call blood glucose monitoring platform and uses its own On Call Extra Test Strips.
The current Extra system includes features such as a small approximately 0.4 µL blood sample, results in approximately 4 seconds, no routine manual coding and the ability to apply additional blood within the manufacturer's permitted re-dosing window when required.
On Call Extra Blood Glucose Monitoring System →
For the complete Extra range, visit:
Shop the On Call Extra Glucometer & Test Strips Collection →
The words Plus and Extra are important when purchasing replacement strips.
| Meter | Compatible Strip Family |
|---|---|
| On Call Plus | On Call Plus Test Strips |
| On Call Extra | On Call Extra Test Strips |
Do not choose replacement strips merely because both products carry the On Call brand name.
Check the model name printed on your meter and strip packaging before ordering.
For a detailed feature and compatibility comparison, read:
On Call Plus vs On Call Extra Glucometer: Complete Comparison →
On Call Plus Test Strips should be purchased for compatible On Call Plus blood glucose meters.
They should not be substituted with On Call Extra strips simply because the strip packs are manufactured within the same On Call brand family.
If you are uncertain about your meter, read:
On Call Plus Test Strip Compatibility Guide →
On Call Extra uses the On Call Extra Test Strip system. Always verify the words On Call Extra on your meter before purchasing replacement strips.
Read:
On Call Extra Test Strip Compatibility Guide →
Both are On Call blood glucose monitoring systems, but they represent different product generations and should not be treated as one identical system.
| Feature | On Call Plus | On Call Extra |
|---|---|---|
| Compatible strips | On Call Plus Test Strips | On Call Extra Test Strips |
| Approx. sample size | Approx. 1 µL | Approx. 0.4 µL |
| Approx. result time | Approx. 10 seconds | Approx. 4 seconds |
| Coding system | Older Plus system uses code-chip based setup | No routine manual coding |
| Stored results | Up to approximately 300 | Up to approximately 500 |
| Re-dosing capability | Refer to Plus instructions | Supported within the manufacturer's specified re-dosing window |
For a detailed explanation of these differences, visit:
Compare On Call Plus vs On Call Extra →
If your On Call Plus meter displays an error such as E0, E1, E2, E3, E4, E5, E6, a temperature warning, code-chip warning or another unexpected message, do not repeatedly waste test strips without first checking the cause.
Use our dedicated model-specific troubleshooting guide:
On Call Plus Error Codes & Troubleshooting Guide →
The guide explains common strip, sample, battery, temperature and code-chip problems and when a fresh test strip or control check may be appropriate.
On Call Extra has its own troubleshooting logic and should not automatically be diagnosed using On Call Plus error-code instructions.
For Extra-specific messages including E0, E1, E2, E5, E6, HI/LO and strip/sample problems, visit:
On Call Extra Error Codes & Troubleshooting Guide →
Correct strip insertion, hand preparation, blood sampling and sample application are important for reliable operation of a glucose monitoring system.
Choose the guide for your meter:
Always check the expiry information printed on the manufacturer packaging and follow the storage instructions supplied with your specific strip system.
Keep unused strips in the packaging or container specified by the manufacturer and protect them from unsuitable heat, humidity and contamination.
Customers using On Call Plus may encounter questions about the meter's code-chip system, coding errors or replacement-strip setup.
We have a dedicated guide explaining how the Plus coding system works:
On Call Plus Code Chip & Coding Guide →
One of the useful features of the current On Call Extra system is the ability, under the manufacturer's specified conditions, to add additional blood shortly after an insufficient first application.
This should not be confused with unlimited re-sampling or repeatedly adding blood after a test has already progressed.
Read:
On Call Extra Re-Dosing & Second Blood Sample Guide →
Customers who use On Call Plus regularly may choose between smaller consumer quantities and larger-value packs.
Before purchasing a larger quantity, consider your expected usage, current batch expiry and storage requirements.
Read:
On Call Plus Test Strips 50 vs 200 Pack Guide →
For deeper product information, use the Microsidd Knowledge Hub:
Microsidd India supplies blood glucose monitoring products to individual customers, healthcare professionals, clinics and laboratories across India.
Customers in Bengaluru can also find Microsidd India at RT Nagar, Bengaluru.
View Microsidd India Bengaluru location information →
No. On Call Plus and On Call Extra are separate blood glucose monitoring systems and use their respective compatible strip families.
No. Purchase On Call Extra Test Strips for the On Call Extra meter.
No. The On Call Plus meter requires compatible On Call Plus Test Strips.
The current On Call Extra system is specified at approximately 4 seconds, while the On Call Plus system is approximately 10 seconds.
The current On Call Extra system does not require routine manual coding.
The traditional On Call Plus system uses a coding/code-chip system. Refer to the instructions supplied with your meter and test-strip pack.
Use the troubleshooting guide for your exact meter model because the meaning and recommended action can differ between Plus and Extra.
Microsidd stocks multiple On Call Plus strip quantities including standard, bulk and selected foil-pack configurations, subject to current availability.
Visit the On Call Extra collection at Microsidd to view current 50-strip, 100-strip and foil-pack availability.
Medical information notice: The information on this page is intended to help customers understand product compatibility, features and purchasing options. It does not interpret blood glucose readings or replace medical advice. Follow the instructions supplied with your meter and test strips and consult a qualified healthcare professional regarding testing frequency, glucose targets or treatment decisions.
The On Call GK Dual is different from the standard On Call Plus and On Call Extra glucose meters because it is designed to measure both blood glucose and blood β-ketones using compatible test-strip systems.
According to ACON, the GK Dual can use compatible On Call Chosen or On Call Advanced test strips for blood glucose testing, while On Call Blood Ketone Test Strips are used for β-ketone testing.
Typical GK Dual specifications include approximately 5-second glucose results, 10-second ketone results, a glucose sample of approximately 0.8 µL, a ketone sample of approximately 1.2 µL, and storage for up to approximately 450 glucose and ketone results.
For detailed setup, compatibility and troubleshooting information, read:
