Extech DO 700 Portable 9-Parameter Meter Kit

This 9-in-1 meter with lab performance measures Dissolved Oxygen concentration/saturation, pH, mV, Conductivity, TDS, Salinity, Resistivity and Temperature. Features include: automatic salinity compensation and manual barometric pressure; compensation for DO measurements; waterproof housing (meets IP57); one button pH calibration (4, 7, and 10pH); choice of 3 point pH calibration for better accuracy; one point Conductivity calibration - automatically recognizes 8 calibration solutions from USA, Europe and China series; automatic temperature compensation (non-linear compensation for purified water <10µS/cm to improve measuring accuracy); memory stores up to 400 readings with series number, measured value and temperature; auto power off saves battery life with disable function; and large blue backlit dual LCD display. Comes complete with Dissolved Oxygen probe with 3 membrane caps and DO internal fill solution (30mL), pH/mV/Temperature electrode, polymer Conductivity cell, pH calibration solutions (4, 7, and 10 pH), Conductivity calibration solution (1413µS), 2 AA batteries, and hard carrying case.