- Delivery came only 2 or 3 weeks later than the last possible delivery date mentioned (it was debited but immediately)
- "Device" came in a small envelope from Asia, inside covered by a Pengfolie - NO ORIGINAL PACKAGING!
- No manual
- NO SEAL OF APPROVAL (no TÜV, GS no, no VDI - nothing)
- NO Battery
- The holder of the battery is hakelig and made of thin metal sheet which breaks presumably after the 2nd or 3rd exchange
- The cover sleeve is loose
The "device" is neither reliable nor trustworthy, I have not dared to try it, for fear of injury.
Definitely I can only advise against the purchase ...