That looks like a very nice meter. It is a little spendy for my hobby budget. I have found two models that look good but they only goes to 13’. My pond is 18’ so I don’t think the 5’ difference is worth the extra money. Let me know what you think. Or if there is another meter out there you can recommend.

Extech DO210 - Dissolved Oxygen Meter $334

VEVOR Dissolved Oxygen Meter $483