The Horiba LAQUAtwin Salt-22 NaCl ion meter performs accurate measurements from just a 0.3ml sample, or 0.05ml with a sampling sheet B. It uses the ion selective electrode measurement principle to measure sodium ion concentration, converting it into salinity or NaCl salt concentration. By requiring only a few drops of the standard or sample the LAQUAtwin Salt-22 NaCl ion meter saves time and prevents sample waste by eliminating the need for a beaker to calibrate. This meter is ideal for submersible and small sample or solid sample applications.