The Solinst Model 101 Water Level Meter is a dependable tool for accurately measuring water levels in wells, boreholes, and other water bodies. Its robust design and easy-to-use features make it ideal for field applications.  

The P7 and P2 probes measure well depth, but differ in submergibility and design. The P7 is submersible to 1000ft, smaller, and lighter, while the P2 is shielded for cascading water but not suitable for deep submergence. Both are easily repaired or replaced.