1 Getting Started Tutorial
18 Keysight U3402A User’s and Service Guide
Introducing the Keysight U3402A Dual Display Multimeter
The key features of the U3402A dual display multimeter are:
– 5 ½–digit dual display measurement
– Eleven measurement functions:
–AC voltage
–DC voltage
–AC + DC voltage
– AC current
– DC current
– AC+DC current
– 2-wire resistance 
– 4-wire resistance
– Frequency
– Continuity test
–Diode test
– Five math operations:
–dBm
–Min/Max
– Relative (Rel)
– Compare (Comp)
–Hold
– True RMS measurement for both AC+DC votage and current.
– Wide AC and DC current measurememt range; from 12 mA to 12 A.
– Resistance measurement up to 120 MΩ with 1 mΩ resolution at slow reading 
rate or up to 300 MΩ with 10 mΩ and 100 mΩ resolution at medium and fast 
reading rate respectively.
– Frequency measurement up to 1 MHz.
– dBm measurement with selectable reference impedance from 2 Ω to 8000 Ω 
and audio power measurement capability.
– Dynamic recording for minimum and/or maximum readings.