Does the WaterGuru SENSE work with Concrete Skimmer covers?

No.  If your pool has a stone, concrete, paver, travertine or slate skimmer cover or "Hide" hidden skimmer covers, you will need to remove the concrete skimmer lid to install the SENSE.  After you install the SENSE, the SENSE becomes your skimmer cover.

If a stone, concrete, paver , travertine or slate cover is placed on top of the skimmer where the SENSE is installed, the SENSE will not work.  These materials block Wi-Fi and Bluetooth connectivity which the SENSE needs to communicate with your Wi-Fi network.