That's the only plastic part of it, the rest is solid metal. There are more accurate pencil gauges available that read down to 5 PSI and top out at 50 PSI, if you don't need the high end of the range.

A good digital tire gauge should be accurate to within 0.5 psi and easy to read. It should also be durable enough to withstand the rigors of daily use. We spent several hours researching and ...