The basic difference between Model GDM8341 & Model GDM8342 is that the 8342 provides storage for data collection on a flash drive, a temperature function and it may also be equipped with a factory installed GPIB interface. Models offer computer connectivity via USB interface. All other specs are common to all instruments

• 50,000 count 0.02% dcv accuracy
• Dual display measurement
• Three selectable measurement speeds
• Auto/Manual ranging, true RMS
• Min/Max, Rel/Rel#, MX+B, 1/X, Ref%, compare, hold, dB, dBM
• Free software, remote control, data retrieve
• Capacitance: 7 ranges to 50uF
• Frequency: 3 ranges to 1 MHz
• 11 different measurement functions
• Data storage collection and temperature functions ( Model GDM8342 & 8342GP)

Specs

Datasheet