We are considering a pool alarm (like the one where water disturbance sounds an alarm in case a child falls in).

However, I've reviewed many of the products in this market and it seems like just about all the manufacturers have plenty of complaints about either false alarms or they just do not work as advertised. Some are based on surface water movement while others are based on water displacement.

Does anyone have any advice or experience on a good recommended pool alarm? This is for an inground pool

Thanks.