When you buy test equipment, you expect it to work. You don't expect it to be dead, half working, or giving the wrong result. The Ethernet portion of the test pack works fine. However, the voltage probe was DOA. Didn't even turn on. It's a slap in the face to stick a QA sticker on the sensor and stick it in the box when you know it's not working. I ended up buying the required probe from another vendor. If Noyafa wants to compete with Fluke, they better make sure their products are ready to go.