Well, after my fiasco with their Chinese rebrand 2100 DVMs, I should have known better than to buy another Keithley anything.
I figured a source-meter would be good to have, so I got a 2401. $3000 mistake.
The user interface is terrible.
The VF display is bad, so I thought I had the current limit set to 1 amp, but it was actually 1 uA, because the "u" doesn't work. The "A" flashes intermittently.
If it's programmed to make 10.000 volts, it's pretty good after it warms up for a half hour or so. But if you grab one of the insulated test leads, local EMI seems to get into it, and you can make the voltage go down to 9.8.
It does have a CE mark on the back, so it should have been EMI tested. Hmmmmm.
Back it goes.