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Agree that the applied pressure will not blow out the Delrin cap but when you pressurize the chamber it'll be subjected to 4 or 5 ATM external pressure that could open a hole in the Delrin if not thick enough. I'm not saying it will happen (not an expert on materials resistance). All I can say...

If you are closer to the UK than to the US, this is another alternative Watch parts and Tools store that carries the Bergeon 5555/10, as well as another using the same principle but more affordable (although smaller) waterproof tester, made also in Switzerland by Calypso: Search - waterproof testers

Sealing the transmitter with a 7/16" UNF female cap with an O ring.

I assume you are referring to the AI dive computers mounted in a console, with a hose connecting to a high-pressure port of the regulator (like the Suunto Cobra for instance). Those computers do not fit in the Bergeon pressure chamber and we use a pressure chamber similar to the Global for those...

Not at all. The handle is long enough to provide a powerful leverage to operate the internal manual pump. Ten to fifteen pump cycles and you are at 160 feet (50 meters), which is our standard testing depth.

We have tested thousands of dive computers (all brands and models) with the Bergeon waterproof tester and never have had an issue with the pressure sensors (remember you pressurize in the air for a very short interval of 1 to 2 minutes at most). There is a small offset in pressure depth...

@BoltSnap, We prefer the hand pump. Gives you better control of the increasing pressure ("depth") you are applying to the dive watch or computer under test. Although the Global pressure pot is much larger in size, the Bergeon allows conducting non-destructive tests whereas the Global doesn't...

I believe what you are looking for is the Bergeon 5555/10, transparent pressure chamber that can be pressurized to 330 feet. This is one of the pressure chambers we use at DIvewatchdoctor to pressure test every dive computer we service. It's not cheap but is the best your money can buy, swiss...

Shruber, You're right and we are aware of the behavior you describe. Is definitely true with the Suunto D4's and D6's. It happens sometimes with the D9's whereas never happens with the older Stinger and Spyder. Our non-destructive Bergeon testing chamber requires pressurizing first the dive...

GloryDayz is absolutely right on how to open the Mantis 2 to replace the battery. In spite of the misguiding suggestion in the Scubapro User Manual to use a "correct size coin" to open the rear case, you will not succeed and only ruin the case. The only secure way to open it, particularly if...

A good piece of information. Thanks, Barmo.

Bruce, User Manual was sent.

I have a PDF version of the CASIO DEP-510 User Manual. PM me your email.

I am buying broken, irrecoverable Suunto's D4, D6, D9, D9tx, and DX. Willing to hear all offers.

@Tugboatdriver37, Sent.

The way to open the transmitter is not the destructive one (you risk damaging the threads in the cap which would only escalate the problem). It's better to drill two 180° opposite small holes in the cap and then use a spanner wrench to unscrew it. We have open many "condemned" caps in...

@sfdiver, The correct Oring for the Sherwood Wisdom is AS568-026-B70 and the battery is a CR2450. Good luck.

@Steven Bird, The B026 Oring is, obviously, circular. However, the battery compartment and seal slot in your Genesis React are "square". What you have to do is spread first a thin coat of silicone grease on your B026 and then slowly work your way installing the circular Oring in the "square"...

The Oring for the Genesis React is AS 568 B026.

@Brewingfisherman, Fo sure. Let us know what do you need to be pressure tested. You can contact us at service@divewatchdoctor.com or give us a call: 954 470 7841.