||A portable two channel multi meter with water quality field applications. Capable of measuring a variety of parameters (e.g. pH, conductivity, resistivity, total dissolved solids (TDS), optical dissolved oxygen (DO), biochemical oxygen demand (BOD), oxidation reduction potential (ORP), ammonia, ammonium, fluoride, chloride, sodium, temperature) by utilising a wide range of dedicated, interchangeable Hach INTELLICAL smart electrodes. Power can be provided by an AC adapter (optional), or batteries that permit field use. Allows the measurement and display of two parameters simultaneously, with memory for up to 500 readings.