Tyre Pressure Gauge Pencil. Measure the tyre pressure accurately with this Carpoint analogue tyre pressure gauge. The tyre pressure gauge has a measuring range of 5-50 PSI. Simply place the nozzle on the valve and press firmly for 1 to 2 seconds. Remove the gauge from the valve and the measured tyre pressure can be read. Measures tyre pressure accurately. Measuring range from 5-50 PSI. Pencil model with fastening clip.