This is a 4 piece gauge set that includes a pressure gauge that records up to 4,000 psi with a built in separate water temperature gauge, the compass works well, the depth gauge shows up to 200 feet with a reset-able target depth pointer but unfortunately the computerized, record able depth gauge timer no longer automatically goes on when you first enter the water. I suppose it needs a new battery. If not wanted it is housed in it’s own seperate and easily removable housing from the cluster which would leave a shorter 3 gauge cluster. The included high pressure line that attaches the cluster to your first stages is in good, flexible condition and even has it’s own O ring. Installation is easy. All you do is remove one of the high pressure Allen wrench plugs from your first stage and screw the high pressure line from the gauge cluster into the opening. You get all these gauges for only $35. I will meet a potential buyer with in a radius of 10 miles from Seaford or you can come to my home in Seaford to see and pick up the cluster or I’ll ship it within the USA at the buyer’s expense estimated via USPS.