I'm selling this calibrator. It works great. All buttons work. I haven't calibrated it, but it looks pretty close to my Fluke. There are a few trimpots inside for calibration. This calibrator comes with a built-in battery pack, but I removed it in the past since the batteries were dead, and used it with an external power supply. If someone wants to use it with batteries, 6 AA Ni-MH batteries in series will do the job.
The photos show everything.
Asking 220 Euro for it without shipping.