How to change the battery of non-contact IC card smart water meter

1． First check the front of the water meter to determine the type of water meter, as shown in the figure below.

2. Purchase the battery according to the water meter model, as shown in the figure below.

3． Then find a circle label on both sides of the meter, as shown in the picture below.

4. Remove the label so you can see the cover underneath, as shown below.

5. After unscrewing the cover, insert the battery and close the cover. This completes the replacement of the water meter battery, as shown in the figure below.