Anyone experiece with Sensative Strips Guard ZW 800?

I wonder if anyone has experience with the Sensative Strips Guard ZW 800 here?

I am thinking of buying these for my doors. Just wonder how well they really work and if the battery life is really as long as advertised.

I tried two but wasn’t happy. Kept losing connection.

Hmmm ok. Doesn’t sound promising then. Thanks for the feedback.