This is only an info, no advice to dive the display, or use it or go on deep diving.

The display units are tested before we ship them. 1 hour at 6 to 8 bar.

We just made this nice trough view pressure testing tube to make picures to show you what we test.......

So we say they are OK for 40 meters, normal diving depth.

Even tests on some rebreathers showed the tube style display unit is working fine in 120 meters, we just say, they are OK for maximum sport diving depth