Plus one - I would switch to solid state sensors if they seamlessly integrate to existing Shearwater electronics and my rebreather (rEvo). @Shearwater are you listening?
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I would consider something like this where my standalone has a single SSS cell shown.+1
While I'm at it, another bump for an idea that, IIRC, tbone shared some time ago, which was to utilize the AI function of a Shearwater to report P02 rather than tank pressure. Would love to plug a transmitter into my head and have real time P02 fed to my secondary - and dispense with the need to have another wire to manage for a hardwired version.
Apologies to tbone if I'm mistaken about who suggested it.