Horiba Conductivity Meter Kit (EC210K)
It’s the newest generation of Waterproof handheld meters from Horiba that measure EC/TDS/Res/Sal/Temp. This comes with:
If are you're looking to measure a single parameter at a time (EC/TDS/Res/Sal) with a portable handheld meter then this is right for you. The meter itself is very durable and the housing is IP67 waterproof, non-slip, shock & scratch resistant.
Compared to the lower model (EC210K), the EC220K has more memory (1000 datasets), date/time stamp and also the ability to connect directly to a computer. Alternatively, if you are needing to measure these parameters simultaneously, then the PC210 or PC220 is recommended.
Summary: The EC220 is a single channel multi-parameter suitable for measuring conductivity, TDS, resistivity and salinity. It has higher memory, date/time stamp and computer connection.