I have had this sensor for a year now and have used it 3-4 times. I have another Accu-Gage that I bought from CarTalk about 10-12 years ago that is reliable and accurate (straight chuck). Bought this as a replacement. This Angle Chuck Accu-Gage reads 10-12psi less than 36psi compared to what my other Accu-Gage shows. I compared this pressure reading to TPMS and a Costco self-service tire station, both of which read 36psi. I'd love to return this one, but I've been so busy that I wasn't able to test it until 6-8 months after purchase, which is well past the return period. I checked it again today and got the same poor reading results. I just wanted to write my experience for others to know.