For measuring pH, Redox, conductivity, TDS, salinity and temperature. Robust, waterproof housing Data memory for 99 GLP data sets Intelligent Sensor Management (ISM ® ) for automatic recognition of ISM ® sensors and reading in calibration data pH measurement: Automatic 1-/2-/3-point pH-calibration from four pre-defined points and a user-defined buffer set Automatic end point recognition, automatic buffer recognition and temperature compensation give reproducible results InLab ® ExpertGo-ISM ® pH single-rod measuring cell with integrated temperature gauge for aqueous samples, including emulsions, suspensions and solutions with proteins. PH-range: 0 to 14. Operating temperature: 0 to +100 °C. Protection rating: IP 67. Perforated diaphragms, polymer-electrolyte, plastic shaft. Shaft length/Ø: 120/12 mm Conductivity measurement: Single-point calibration with calibration standards (84/1413/12880 µS/cm) Linear temperature compensation Selectable reference temperature With robust conductivity sensor for medium to very high conductivity: InLab ® 738-ISM ® (IP 67) with integrated temperature gauge. Measuring range: 0.01 to 1000 mS/cm. Plastic shaft, length/Ø: 120/12 mm. Operating range: 0 to +100 °C Note: for ORP measurements, please order redox electrodes separately. Combi hand-held measuring device SevenGo Duo™ SG23-ELK Delivery incl. InLab ® ExpertGo-ISM ® pH single-rod measuring cell, InLab ® 738-ISM ® conductivity sensor, batteries and wrist straps.