SevenMulti S40 pH meter is designed to handle the more rigorous needs of a research lab. On-line help menus guide the user through operation. Calibrate up to 9 pH points with 5 selectable buffer sets for auto buffer recognition, or up to 9 user defined buffers. Calibration reminder can be set by number of uses or by time. Memory can hold last 10 calibrations, 10 methods and 1000 measured values.

Choose auto read, manual read or timed interval readings. Graphical display of calibration curve, and graphical display of last 25 readings with high/low limits. RS232 interface and analog output to transfer data to computer or printer.

SevenMulti S80 pH/Ion Meter offers all the features of the above meter but comes with two pH/Ion modules. Measurements from both channels are displayed simultaneously on the split display. 9 point ISE calibration with storage of 10 sensors per channel. Direct measurement and incremental ISE techniques.

Both meters come with kit including electrode arm, combination pH electrode with built-in temperature sensor, and buffer sachets.