Im sorta curious about the lifespan of these types of probes, in comparison to the traditional Soil probe, and or solution probe.
I can't answer about the lifespan of that type of probe, but proper care seems to be the secret. Don't let it dry out and keep it in storage solution! From what I've read, good probes (for liquids) last one to several years. You'll just have to come back and give us a review after you've had it a while.
I bought a quality meter after getting fed up with a Milwaukee PH600 and a POS Hanna checker! I paid around $115 for a Milwaukee MW102PH, and it's been perfect so far. It read .04 points high when new and hasn't changed in the few weeks I've had it, never bothered to re calibrate.
It's been out a while and found some great reviews and info. The brewers are serious about ph meters and some of the posters were chemists.
I learned a lot about ph meters by following links!
https://www.homebrewtalk.com/forum/threads/ph-meter-milwaukee-mw101-vs-mw102.448189/
"Researching the web I made an interesting observation. Hanna, Milwaukee, and Adwa are very likely the same company. They all have office at EXACTLY the same address in Hungary.
...Alsókiköto sor 11., H-6726 Szeged...."