This instrument records voltage data from one or two channels.  Low voltage signals from pH electrodes, ion selective electrodes, ORP electrodes, thermocouples, etc., can be amplified up to fifty times and data can be saved in comma separated value (CSV) files.  CSV files can be opened with a spreadsheet program such as excel. The current itteration has British Telecom Analog (BTA) connectors to accept Vernier low voltage analog probes.