FOX Digital Shock Pump – 350psi. Quickly and accurately check and set your suspension pressures with the Fox High Pressure Digital Pump. The Fox Digital Pump features an operating range between 0-350psi and connects to a schrader valve. Measure your shock pressure in PSI BAR kPA and KG with a super-accurate digital gauge. A pressure release button allows you to precisely get your desired air pressure with half-unit increments.