The Hanna Combined meter measures pH, Conductivity, TDS and Temperature without the need to change probes. A large dual level LCD displays pH/Conductivity/TDS with temperature, simply press a button to go from one parameter to the next. Although the meter reads four parameters, with only two buttons the instrument is simple to use. Calibration for pH is at one or two points, with 3 memorised buffers. Conductivity calibration is automatic at one point, with user selectable temperature coefficient and conversion factor. Two versions available, depending on the conductivity range required. Other features include;

• Rugged, floating waterproof case
• Auto pH calibration with a choice of standard & NIST buffer sets
• Auto EC and TDS calibration with adjustable conversion factor
• Auto temperature compensation
• Adjustable EC/TDS electrode cartridge with extendable junction
• Auto shut-off
• Stability indicator
• Hold feature
• Supplied with combination probe, battery, calibration sachets and hard carry case