I have a ZSE70 on my deck.
It has worked fine until lately.
The battery is 94% now and I'm getting lots of false alerts.
I have the Dusk to Dawn is set to 500 so it shouldn't report in the dark.
It is dark out and no one is in the driveway but the events come in rapid succession sometimes.
Is it sensitive to the battery level? I get no battery reports in the logs so I assume 94% is still healthy.
What type of battery? E.g., are they rechargeable?
I had my Iris v2 Motion Sensors start to throw errant motion events when I used rechargeable CR2 batteries and the batteries started to get low (e.g., they reported 66%). I have no problems with the same rechargeables in the v2 Contact Sensors. My solution was to (sadly) use disposables in the motion sensors and keep the rechargeables for the contact sensors.
I'm using the ones supplied by Zooz.
I can pull them and compare; I have new Zooz ones.
Pink PKCell
Batteries changed.
I'll see if it keeps sending events.
2.96 reports as 94%, new ones are 3.31 VDC.
That battery (CR123) is considered low at 2.75-2.9 VDC. So, looks like the 94% is a miscalculation.
So far today it has been acting nicely so yes, a recalc might be in order, I never received a battery warning from the driver.
Are you using Jeff,s driver? That is what I use. I have 4 of these, 2 on battery and 2 are wired. Batteries show at 97 and 98. The one showing 97 has been up since 12/20/2024.
Yes, Jeff's driver.
I seem to have no issues now after fresh batteries.
Beware 94%. 
Just letting you know I have 2 running on batteries and both started doing what yours did and I just remembered this thread. Battery is 100. I had recently changed to ZWJS and updated the firmware from 1.2 to 1.3 and that seemed to have started this. [probably coincidental]. 1st one that started I finally replaced with a spare. After messing with the 2nd yesterday I replaced it with the one that I changed out earlier [had factory reset after excluding} and it drove me nuts all night. Alexa announces it. Seems to have calmed down now. Not sure why, changed to system driver and got rid of 2 tiny wasp nest that had only 2 wasp apiece and were not that close to it. Just reporting for the record.
I print out a label with the battery date and stick it on the device.