Main door sensor battery now only last 10 days

The battery in the min entry door sensor has worked for a long time without any issues.  The batteries lasted for over a year. In the last few months the sensor stops working after just 10 days.  i have four other door sensors which are still using their original batteries after several years.  Something is very wrong if that battery life (2x 2032) is so short that’s a lot of batteries in a year Any suggestions how to fix this?