Keysight technologies u1730c series handheld lcr multimeters keysight technologies u1731c with the u1731c handheld lcr meter from keysight technologies you can measure at frequencies up to 1khz the u1731c also offers auto identification which conveniently displays component type and detailed component analysis such as z esr dcr enabling you to get measurements done faster whats more the battery lasts up to 16 hours ideal for testing on the go all meters in the u1730 series are desig