pH/PPM Monitors: Which one's the best?

Hightz

Hightz

Member
So, today I'd like to ask a few questions regarding brands of nutrient meters and how reliable/accurate they are.
I've found a few options I thought could work well based on reviews, but any confirmation on these would be nice.

1. Bluelabs TRUNCOMV2 commercial truncheon nutrient meter
https://www.amazon.com/Bluelab-TRUN...ater+tester&qid=1554484876&s=gateway&sr=8-141

2. Hanna Meter
Seem's to be some concerning reviews on amazon but perhaps it's just this meter? Are any of their other meters any good?
https://www.amazon.com/Hanna-Combo-...ter+combo&qid=1554485716&s=gateway&sprefix=ha

3. Groline
Just another option around the same price.
https://www.amazon.com/GroLine-Hydr...485812&s=gateway&sprefix=hanna+meter+&sr=8-47

4. Apera Instruments
https://www.amazon.com/Apera-Instru...16&s=gateway&sprefix=apera&sr=8-1-spons&psc=1

Any other brands anyone can recommend?
 
I loved my Hanna. Till it broke. Was about $200CDN. Now I’m just buying a mediocre one for $50 from amazon.
 
truncheons are damn near indestructible. a friend of mine has been using the same one for about 8 years, still kicking despite heavy abuse. i have used quite a few over the years, they are good to go imo. bluelabs combo meters, not so much
i use a groline combo currently. mine looks different than the one you linked to though. i like it a lot. its only been in service for a year or so, so i cant comment on the durability just yet. i like the .00 graduation and single probe aspects in particular
 
I have the truncheon and apera ph60 you linked, both are quality instruments. I calibrate the apera on the first of each month and it just read 7.01 in 7.00 calibration solution. The thing stays accurate and has some nice features for the price.
 
I have a truncheon, blue lab, hanna grow line soil, Apera... have used a lot of different ones in my time. They all work. I like my Apera a lot but it needs calibrating more often than my Blue Lab. The Hanna is ok.

TBH I would go with a Blue Lab if I were to buy another today. The Apera is awesome but I hate calibrating it every day. The Blue Lab I calibrate weekly and its rarely even off, if it is it's off by 0.1.
 
Just purchased an Apera 5-in-1 with solution kit on account of this thread. Tired of my cheapo Chinese pen having huge pH swings even as I'm calibrating it... Grr

Literally last week I had one solution of 4 pH solution perfectly measured and at the perfect temp and the 7 pH solution. Of course the pen needed calibrated... but once dialed in to the 4 pH the 7 pH would be about 0.7 pH off WTF?? Grrr

+Rep for @Renfro and @mnmobbin Thanks guys!
 
Thats not good. Is it possible you accidentally gave it the 4 solution when it was looking for 7?
 
Renfro said:
Thats not good. Is it possible you accidentally gave it the 4 solution when it was looking for 7?
Click to expand...

Nah... it's just one of those cheapo chinese pens. It was like a $7 pen. I'm pretty sure the watch batteries cost more than the entire cost of the pen. Decided to go Apera 5-in-1 on account of you and @mnmobbin
 
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