Offers selectable manual measurement or system application

• This product includes a comparator function essential for component sorting, fast 16 times-per-second sampling, temperature compensation and auto-ranging, and a choice of versions depending on usage.
• The 3540 is the low-price version without external control interfaces, for manual measurement.
• The 3540-01 adds BCD output and external control, the 3540-02 includes a printer interface and the 3540-03 includes a RS-232C interface.