Yay! The calibration worked. I had to do it a couple times for the reading to stick, not sure why. Seemed like I needed to shut it off while still in the solution vs the video turning it off when it was out, but I don't know for sure. But it's all good and happy they have that option built in, I was just going to toss it since this was number 2 and customer service didn't say anything about calibration and the reset didn't work again.
I highly recommend having a bottle of something like AccuraSea from TFL to use before each reading, you can put the checker right in it and while it's not a full inch away from the sides, you can still see if the results are reasonable or if you need to recalibrate. I don't mind doing that extra step and it's still fast to do before a reading.
I highly recommend having a bottle of something like AccuraSea from TFL to use before each reading, you can put the checker right in it and while it's not a full inch away from the sides, you can still see if the results are reasonable or if you need to recalibrate. I don't mind doing that extra step and it's still fast to do before a reading.