It sends sound pulses down to the water's surface and calculates depth from how long they take to bounce back. Since nothing ever dips into the tank, there's no probe to coat in sludge or corrode over time.

Yes. Since it mounts above the tank and never touches the liquid, there's no probe inside to get coated in waste buildup, the main reason black tank readings turn inaccurate over time.

Yes. As long as the sensor sits on the tank lid with a clear path down to the water's surface, it reads accurately regardless of whether the tank is buried, square, round, or an unusual shape.

There's no internal probe to corrode, no float to jam, and no wiring inside the tank to short out, the top reasons cheap monitors quit within a year. With nothing touching the water, there's simply less to fail.

As many as you need. Add a sensor for each tank, fresh, gray, black, or a separate cistern, and label them in the app so checking multiple tanks feels as simple as checking one.

No. The app and every alert are included for free, for the life of the device. You get full access on iOS and Android with nothing extra to pay month to month.

Yes. Pair it with a compatible relay and set your own low and high thresholds so a pump can refill a cistern or livestock tank automatically, no more checking levels by hand every morning.

No. The sensor mounts on top of your tank lid with the included gasket, no drilling, no cutting, and no modifying the tank itself. Most owners have it mounted and reading levels in under ten minutes.