Our laboratroy measuring instruments from the Lab and ProLab product family as well as the portable instruments enable most reliable results in combination with our electrodes and accessories, the unique buffer solutions and ampoules. They enable and secure the daily routine of pH, redox, ISE, conductivity and D.O. measurings from process to documentation. The ProLab instruments calibration and data report does not only include the measuring values as well as data and time, it also includes the used ID electrode with type and serial number and the user also. This service is based on the recognition of the ID sensor and user via the transponder technology. The ID electrode also carries the actual calibration data. The Lab 870 and 970 as well as the instruments of the ProLab series always use these individual figures of the ID electrode for calculating the pH and conductivity values. The electrode recognition therefore allows the operation of multiple ID electrodes on one instrument or one electrode connected to multiple instruments, without having to calibrate with every change of instrument. Our measuring instruments and electrodes therefore proof to be the perfect team.