Hi,
A nice video, thanks for that.

I'm not surprised that the DE5000 still performs well; it's simply well designed and is one of the favorites in the field of portable LCR meters.
A few notes:
- The 100kHz measuring frequency should be taken with a grain of salt in all low-priced meters that offer it.
Especially when it comes to displaying the second parameter, it can hardly be trusted with increasing frequency.
- You used the DMM+ reference as a reference, the new version of it.
I have the predecessor of it, where the L/C unit was still optional.
However, it is identical to the L and C of your new version, so I can still say something about it:
When I received my DMM+ with the L/C board, I was initially disappointed.
Neither the capacitors nor the inductors were precision types, but simply standard products that had been measured.
And then with a rather normal LCR meter from BK.

We can only hope that their BK891 was at least calibrated using reference capacitors and inductors.
However, a comparison is only a comparison if all test candidates have the same basis.
In other words, there is only one measurement frequency that is comparable to the “reference”, namely the one used to measure the DMM'+ reference.
According to the calibration certificate of my DMM+ reference, this was
10kHz when the measurements were performed on the L/C part.
In other words, only the 10kHz measurements are directly comparable to the reference.
And then it would also have to happen at the same measuring voltage, but this is not mentioned in the certificate.
This is just cherry picking, but it should be mentioned so that it can be categorized.
Martin