Sonar pool alarm?

[Nochka]

We're breaking ground soon on a 40x10 in-ground pool with spa. We have many young children in our neighborhood, so in addition to the fence, we're adding a motorized safety cover.

I'm curious if anyone has experience with SonarGuard or similar sonar alarms. I'm attracted by the fact that it automatically rearms itself, and could provide a passive system to back up the fence and cover.

http://www.sonarguard.com

It would be helpful to here from anyone who has direct experience using or installing it.

Many thanks.

 

[JohnT]

Generally pool alarms are a nuisance and seldom get used.

I looked at and considered the Sonarguard, but I couldn't get the company to respond to my questions about the unit so I didn't follow through.

I have some work experiencing processing passive sonar audio, and it seemed like a great idea.