Light at the end of the well: A compact and low-cost DIY water level meter

Nils Michelsen
Goundwater level data are a crucial element of water resources assessments. Corresponding measurements are often carried out with electric water level tapes, which are – despite their simple concept – relatively expensive. Here, I present a low-cost alternative, consisting of an ordinary measuring tape and an off-the-shelf “LED bait” (actually used for fishing). The latter is simply attached to the tape with a binder clip and starts flashing upon water contact. At reasonable depth-to-water conditions...
This data repository is not currently reporting usage information. For information on how your repository can submit usage information, please see our documentation.