What does the water meter mean when it shows that the battery is dead?

At present, a large part of water meters used are intelligent water meters. If you find that the smart water meter is dead, don't open the lead seal to replace the battery without permission. You can call the property department, water department and other departments and let someone take charge of the replacement. Otherwise, on the one hand, it is easy to destroy the water meter, on the other hand, it is easy to bring about measurement disputes.