Need help about LRL to check depth option

[Iziksa]

Hi guys


I?m looking for LRL unit that I can check depth
With dial on the unit or other method
Without going out from the Ring of the deposit ,

I?m looking for something to check depth without
Using the Rods method to go out from the target

I want to stay above the target and dial
on the unit to check depth
Hope you guys can help me to find it