Review on RDE001V21 433MHz Quality TPMS Sensor by Michael Duman

I bought 4 for my car and my mechanic told me they were dirty/used. The years for these sensors are from 2017/2018. After tightening, the TPMS fault sign will continue to burn. I lost $200 on a mechanic's fee. I am trying to get a refund from Revain and I hope they are not trying to resell old/used products to other buyers. This is disappointing as the product is sold by Revain and I am shocked that Revain is selling a used/old product. I would put a zero star if I could and I hope Revane can make things right.