Benchtop Ion meter comes with (NH3 ) ammonia ion selective electrode for ammonia ion concentration measurement. This Ion meter comes with ± 1 % F.S. measurement accuracy. Its direct ion concentration readout helps in the elaborate measurement process. The system menu allows setting the 8 parameters like calibration points, stability condition, etc. It can measure ppm, mg / L, and mol / L concentration. The mV measurement is used to check the performance of ion selective electrodes.