Model 107 TLC

  • In Stock Available for next day delivery
  • Accurate Permanent markings each 1/100ft. or mm allow accurate readings
  • Hardwearing Stainless steel conductors resist corrosion and provide strength
Product Options
101 Power Winder
Carry Case Required


The TLC Meter is ideal for profiling conductivity and temperature in wells and open water. It displays accurate measurements of conductivity and temperature on a convenient LCD display.

Conductivity measurements are read from 0-80,000 µS/cm with readings giving accuracy of 5% of reading or 100 µS (which ever is greater).

Water level and probe depth measurements are read off the Solinst durable flat tape, which is accurately laser marked each millimeter or every 1/100 ft. Tape lengths are available up to 300 m (1000 ft).

For automated water level, temperature, and conductivity datalogging, Solinst also offers the Levelogger 5 LTC. (See the Model 3001 Levelogger 5 LTC Data Sheet).

Water Conductivity Measurements

The TLC Meter uses a ‘smart’ conductivity sensor with platinum electrodes to measure conductivity. The conductivity is displayed on the screen along with the associated temperature measurement. The ‘smart probe’ displays conductivity that has been standardized to 25°C, i.e. Specific Conductance (displayed as EC). The conductance temperature coefficient is 2.0% per °C.

Calibration is simple, using 1413 µS, 5000 µS, 12,880 µS, and/or 80,000 µS solutions for 1, 2, 3, or 4 point manual conductivity calibrations.

Water Temperature Measurements

The TLC Meter operates in a range from -15ºC to +50ºC (23ºF to 122ºF). You may choose to have the readings displayed on the LCD screen in ºC or ºF. Accuracy is +/- 0.2°C in Celsius, or +/- 0.4°F in Fahrenheit. The ‘smart’ TLC probe automatically adjusts the measured conductivity values to display as specific conductance standardized to 25ºC. This provides standardized, repeatably comparable measurements.

When the probe is turned on, the LCD screen displays both conductivity and temperature.

Manufactured by: Solinst
Model: Model 107 TLC

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance


Profiling conductivity and temperature in wells and open water
Saltwater intrusion monitoring
Tracer tests
Salinity studies
Testing for water quality impairments from road salt
General indication of chemical contamination level
Early warning of changes in water quality at Industrial sites & Landfills


Temperature Range -15°C to +50°C (23°F to 122°F)
Temperature Accuracy 0.2°C (+/- 0.4°F)
Conductivity Range 0-80,000 µS
Conductivity Accuracy 5% FS or 100µS/cm, whichever is greater
LM2 Each 1/100 ft. and 1/10 ft. and ft.
LM3 Each mm, cm and m
Length 100ft, 200ft, 300ft, 500ft, 750ft, 1000ft
(30m, 60m, 100m, 150m, 250m, 300m)



Related products


You can watch a full video on how to calibrate the 107 TLC meter HERE.
No, Solinst certifies that PFAS is not used, or knowingly present in the manufacturer, or production of their products.