Solinst says its TLC Meter is excellent for profiling temperature, level and conductivity in wells and open water. The device is ideal for salt-intrusion studies, as well as for a general indication of contamination levels. Water level and depth readings are read off the new Solinst PDVF flat tape, which is laser-marked for precision. Temperature and conductivity readings display on a convenient rotating LCD display on the reel. A 9-volt battery, housed in an easy-access battery drawer, offers up to 90 hours of use.

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