The Shock Drive works up to 400 PSI which should work with any shock on the market. It has an easy to read gauge which is surrounded in rubber for durability.
The head threads in to the handle for storage, because you do not wan to get dirt in to your shock.
I have used this a ton while diagnosing a problem with the shock on my wife’s bike and every time I used it I was more impressed.
If you need a shock pump go out and pick up the Lezyne Shock Drive.
Lezyne says: http://www.lezyne.com/product-hpumps-hp-shockdriveY10.php
The super light Shock Drive shock pump features a full CNC-machined aluminum main construction for maximum quality and durability. Its ergonomic handle enhances pumping comfort and the unit provides up to 400 psi (27.5 bar). The diaphragm gauge offers excellent accuracy and is encased in a tough composite matrix that also improves grip. The unique zero-loss chuck design releases the valve pin, which seals the shock, before the pump threads off. The shock drive is excellent for shop use and compact enough to toss in a pack for trailside adjustments.