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Maybe resistor divider on CO input (bringing down original 0.4-2V to ~10-50mV at ADS input) would help?

Not quite. At least oxygen sensor output is DC (0 to 50-65mV) and can be measured against GND. No need for differential input.

A/D converter ADS1115 has 4 channels, so it's possible to add measured values without adding new hardware (https://www.ti.com/lit/ds/symlink/ads1115.pdf).

GOX-100T (T for "tauchen", which means "diving" in German) has only this option, AFAIK.

I think MOD calculated using O2 % is standard function of any analyser with processor, e.g. see https://www.greisinger.de/files/upload/en/produkte/bda/GOX100T_EN.pdf (page 4-5). I did such option in mine, too :) (never finished, I stuck to simple voltmeter-like with potentiometer calibration, as...

Unfortunately I did not take pictures after assembling the battery, but I have few before, while planning layout: a) there are six such sections connected together placet between the screws: 6x by Jarek Andrzejewski posted Apr 2, 2021 at 11:13 AM b) and one such section in the middle: 1x by...

I built 7S7P pack for a Dive-Xtras Sierra (and put it inside the original NiMH enclosure) some time ago. I saw freshly charged NiMH pack can have over 28 volts (NiMH can theoretically have 1.47 - 1.52V per cell, especially if fast-charged), so I assumed 29.4V maximum for li-ion will be handled...

Does volume (speed) of flowing gas impacts the helium reading or it doesn't matter?

How are you going to measure helium content in mix? Ultrasound?

Hi Lucca, great idea. I guess the seal mentioned above is a flat one, not o-ring? Which material did you use? (yes, I know it's 6 y.o. thread, but it does not make it less interesting :) )

How long is a HP hose attached to Digi 2? I consider buing the console (I would use it as backup device - like my "Digital 330" minus average depth plus precise pressure readings for tracking my RMV - yes, I'm an engineer and I like numbers :) ), but if the hose is too long - it would not fit...

Some dive computers let set GF for NDL and deco separately (eg. Xdeep/Genz Black in AdvEAN configuration).

Not quite, you can always rent a boat with bigger horizontal space dedicated for you (my reply was on this issue) :) I do think it's easier to put my DC on the charger than changing the battery, but YMMV. Flooded Petrel What happens if a battery compartment floods?

I suspect the fading OLED killed it. Same happened to Liquivision, but for Black you can still get the screen replaced (though it makes not much sense to do that every few years again and again). I have the Black since 2015 and it's still my primary DC, but I really think about Peregrine as a...

As a DIY-man I would attach a small loop (or two) of bungee cord to the USB cable and use it to keep charger and DC together. I think it could even be hanged (so no need for horizontal space at all). Just a bungee and few knots. It looks like the ridge (square frame) makes initial alignment easy...

You can try to glue patch of rubber around. Local dive shop repaired my pair of footpocket jets this way. I took few photos: album