rob1116
Member
I recently bought a pinpoint pH monitor. After playing with it for a month, talking one on one with the manufacturer, and calibrating it with 3 different brands of fluid... I can honestly say it is dead accurate.
Now here's the reason I didn't believe it's reading of 7.6 initially: I have 3 color indicator test kits, each one reading 7.9, 8.2, and 8.3. The 7.9 was the Seatest, the 8.2 was a Red Sea, and the 8.3 was a Hagen.
My pH is now 7.9-8.0, and the test kits read 8.2, 8.4, and 8.6.
Lou at American Marine, (makers of pinpoint monitors) wasn't surprised at all when I called him. He says he gets calls frequently from people that are positive thier probe is malfunctioning, (like I was) and it almost never is. When I asked him why the color indicator tests were so far out, he asked me this: "How many test kits do you have?" ...I said three. "That's what most hobbyists have. Now if you've been adjusting and striving for an 8.4 reading, and one or two of those is giving you that reading, and the other is giving you a much lower one... which one are you going to buy again?"
lol... It's true. I already thought that the Seatest must be the farthest off and wasn't going to buy it again.
Lou says that while most hobbyists pride themselves with having a high pH, (8.4+) the reality is most are running 7.9-8.1 true. And he wasn't trying to save sending me a probe. Through a few simple tests over the phone, he proved to me without a doubt that the probe wasn't 'drifting'... and then told me he would gladly send me a new probe just to make sure, but it would surely read the same.
Now here's the reason I didn't believe it's reading of 7.6 initially: I have 3 color indicator test kits, each one reading 7.9, 8.2, and 8.3. The 7.9 was the Seatest, the 8.2 was a Red Sea, and the 8.3 was a Hagen.
My pH is now 7.9-8.0, and the test kits read 8.2, 8.4, and 8.6.
Lou at American Marine, (makers of pinpoint monitors) wasn't surprised at all when I called him. He says he gets calls frequently from people that are positive thier probe is malfunctioning, (like I was) and it almost never is. When I asked him why the color indicator tests were so far out, he asked me this: "How many test kits do you have?" ...I said three. "That's what most hobbyists have. Now if you've been adjusting and striving for an 8.4 reading, and one or two of those is giving you that reading, and the other is giving you a much lower one... which one are you going to buy again?"
lol... It's true. I already thought that the Seatest must be the farthest off and wasn't going to buy it again.
Lou says that while most hobbyists pride themselves with having a high pH, (8.4+) the reality is most are running 7.9-8.1 true. And he wasn't trying to save sending me a probe. Through a few simple tests over the phone, he proved to me without a doubt that the probe wasn't 'drifting'... and then told me he would gladly send me a new probe just to make sure, but it would surely read the same.