pH electrode InLab Expert Pro-ISM for SevenCompact devices: Robust 3in1 electrode with PEEK shaft Polymer electrolyte Maintenance-free Resistant to contamination due to open connection Integrated temperature sensor Intelligent Sensor Management (ISM): sensor data, calibration and maximum temperature are stored in the sensor and are automatically transferred to the measuring device when connected Fixed cable: 1.5m Connector plug: BNC, Cinch/RCAMeer tonenMinder tonen