Pressure Gauges
 

Are we allowed to use a similar pressure gauge on our robot to the Norgren one provided in the kit? Like, say a Parker 0-160 psi gauge instead? Thanks

You are not allowed to use pneumatic components that did not come in the kit (including pressure gauges)

Can we use more than one Norgren brand gauge, or only one at a time?

Sure you can use two gauges (three is even better :) ) on the robot as long as they come from the kit.