Conductivity Meter

The 8500 Conductivity Meter is a three-in-one conductivity tester featuring an easy-to-read LCD display that indicates parts per million over a range of 0 to 3500 ppm with a resolution of 1 ppm, millisiemens/cm over a range of 0.00 to 5.00 mS/cm with a resolution of 0.01 mS/cm, and temperature over the range of 0 to 50 °C with a resolution of 0.1 °C.
Both the ppm and mS/cm readings are automatically temperature compensated over the operating range of 0 to 50 °C, utilising the temperature sensor in the probe.
This conductivity meter is housed in a robust ABS case and powered by three AAA batteries that give a minimum of 5000 hours battery life.
The unit will power-off automatically after ten minutes, maximising battery life.
Dimensions: 25 x 56 x 128 mm

What is the difference between conductivity and TDS meters?
In scientific terms, conductivity tells you how well electricity is passing through a substance. On the other hand, TDS indicates the amount of dissolved solids within a liquid, accounting for both conductible and non-conductible particles.
In practice, when measuring conductivity and TDS both conductivity meters and TDS meters pass electricity through a liquid. Conductivity meters can be used to estimate the TDS in a substance.
How do electrical conductivity meters work?
When the probe attached to the conductivity meter is inserted into the solution, an electrical current flows between the electrons inside the probe. If the ion concentration of the solution being tested is high, the higher the conductance will read, which results in a faster current, and vice versa.