What to do if the meter shows an “Er1” error message?

When the meter display screen shows an error message “Er1”, it could mean one of the following：

1.The test strip has been previously used;

2.The test strip has been damaged because of other reasons (exposed to heat, cold, air, moisture, etc.).

Follow the instructions to repeat your glucose test. Take out a new test strip and insert it into meter’s test strip port.

Quick Guide to Test Blood Sugar 

Test strip storage environment:

1.The expiration date (Discard date) is printed on the label of the test strip vial. For example, 2018-07 means the expiration date is July 31, 2018 if vial cap remains unopened.

2.Once the vial cap is opened, the expiry date of the strips will be 3 months after the opening date. For example, if you open a vial on May 31, 2018, you should use or discard the test strips in this vial on/before August 31, 2018.

3.If the printed expiration date (for example July 31, 2018) on the vial comes earlier than 3 months of opening the vial (for example August 31, 2018), discard the test strips in the vial on the expiration date.

4.Close the vial cap immediately after taking a test strip out from a vial. This will avoid the test strips from becoming damped.

5.Store the test strips in the original capped vial at temperatures between 4 to 30 degree Celsius (39 to 86 degree Fahrenheit) and relative humidity below 90%. Do not expose vials to high temperature (direct sun) or low temperature (freeze).

6.Do not split test strips in a vial into different vials. Do not store test strips in anything else but its original capped test strip container.

If your meter continues to show an Er1 error message, contact our customer service help line for further assistance.

If you have further questions or are in need of additional assistance with RIGHTEST CARE Products, call our customer service helpline toll free at (888) 481-8485. Service hours: 8:00 a.m. to 5:00p.m. PST. Monday through Friday, except national holidays.