This has me really really wanting me to build an analyzer now. I have far too many Raspberry Pi, Arduino, and ESP-32 laying around waiting for a project... Any thoughts on using an ESP-32 and creating a phone app via bluetooth or WiFi?
Funny this comes up because I just took a few tanks out of storage after sitting for awhile (Still in hyrdo though) and wondered if they had rusted at all. Brought them to a local shop, used an analyzer to verify since I didn't want to drain then refill the doubles (impatient), then dove. Had I had my own analyzer, would've saved a ton of time.