I have a set of 4 working Tire Pressure Monitoring Sensors (TPMS) from a 2013 Tesla Model S. This is the older style sensor that doesn't read pressure for display on the user console. The sensors came from our snow tires after we upgraded - so they haven't even been driven on so much. $75 is about 2/3rds off new. Please email/post if interested. I check this board infrequently so a private message may be fastest. Thanks.