FLX50N4, 0-50kV and 0-4mA, Negative Polarity
FLX50N20, 0-50kV and 0-20mA, Negative Polarity
FLX50N10, 0-50kV and 0-10mA, Negative Polarity
FLX50P4, 0-50kV and 0-4mA, Positive Polarity
FLX50P10, 0-50kV and 0-10mA, Positive Polarity
FLX50P20, 0-50kV and 0-20mA, Positive Polarity