Fluke owns trademark on multimeters with "contrasting yellow border"
I agree that having to destroy a shipment of perfectly usable multimeters sucks, but this seems like a pretty clear cut case of trademark violation to me. That multimeter really does look like a Fluke multimeter (see https://www.google.com/search?tbm=isch&q=fluke+multimeter). It was probably designed that way on purpose, probably because Fluke has a reputation for manufacturing high-quality multimeters, and someone could confuse it with a Fluke multimeter at a glance.