AI transmitter on stage cylinder?

[Manatee Diver]

It is completely possible to have an SPG and a transmitter on the bottle. Problem solved.

I tried, I couldn't find a way that didn't add a bunch of new failure points.

 

[tursiops]

I tried, I couldn't find a way that didn't add a bunch of new failure points.

If failure points is your main concern, then neither an SPG or a transmitter is desirable. Just plug the high pressure port. After all, it's your gas, it is what you have to breathe, so breathe it. You either have enough or you don't. Keep it simple.

 

[Manatee Diver]

If failure points is your main concern, then neither an SPG or a transmitter is desirable. Just plug the high pressure port. After all, it's your gas, it is what you have to breathe, so breathe it. You either have enough or you don't. Keep it simple.

A stage bottle is used until you reach drop pressure and either dropped or simply stowed. So pressure monitoring is required.

And even when not explicitly required like with deco, the ability to monitor it is worth the failure points of a SPG or a transmitter. But adding the various components and adapters to use both is adding failure points with no additional benefit over just having one.

 

[tursiops]

A stage bottle is used until you reach drop pressure and either dropped or simply stowed. So pressure monitoring is required.

And even when not explicitly required like with deco, the ability to monitor it is worth the failure points of a SPG or a transmitter. But adding the various components and adapters to use both is adding failure points with no additional benefit over just having one.

Read the thread.
The topic was having a transmitter on a stage bottle. Multiple people expressed concern about that. For example:

a transmitter on a staged cylinder would mean it's not shareable. Meaning you can't give it away ... as the other diver woudnt' know how much is in it.

Then came the either/or response about an SPG or a transmitter:

So what do you do if you need to share a bottle with a transmitter? Well, the best answer is not to use a transmitter. Other options:

- Use the bottle and stay close to your buddy, so the buddy can inform you about gas pressure.
- Pair the bottle with your computer, if possible.
- Get the bottle and the buddy's computer, if possible.
- Use the bottle's weight and your dive plan as proxies for gas pressure.

So I said:

It is completely possible to have an SPG and a transmitter on the bottle. Problem solved.

Then folks went ballistic about failure points and overkill.

Hey, it's ScubaBoard.

Personally, I think a transmitter on a stage bottle is quite unnecessary. You only need to know when to drop it (like at a third) and when to stop using it again (like at 2/3 or exit). You could probably come close just on time, and a button gauge would be plenty (so no hose or spindle....hey, got to remove those failure points....)