There are thee different conversions from ec to ppm and it causes endless confusion, just go by ec.
Ppm meters
- Thread starter Jimi O'Connor
- Start date
Mine went in the trash after I checked the calibration.
Billy the Mountain
Well-Known Member
Because the meter is measuring electrical conductivity, not dissolved solids.
The ppm displayed is simply EC x constant (usually 0.5, but could be .64, or .7) and is the source for needless confusion,
The "ppm" values given by a meter are NOT the ppm of the elemental nutrients; the source of yet more confusion.
Stick to EC when describing nutrient concentrations.
Honest question, what makes a Blue Lab ph meter better than any other quality meter?
ProPheT 216
Well-Known Member
Last edited:
manfredo
Well-Known Member
EC meters you can get away with a cheap one. This works great for me.
Amazon
A PH meter you need to spend a few bucks on, but not so much for a PPM meter
Jimi O'Connor
Active Member
I kinda kbow what a slurry test is and no i dont water to runoff. I use the ac infinity self watering trays. They work greatLots of thing in this statement are concerning. Do you water to run off always? Do you know what a slurry test is?
I was making sure someone didn't already answer before I did
Dameon187
Well-Known Member
If there's any Amazon links to these products that are quality, a great Patriots have any to provide please provide. I don't think I have 48 hours I would like to have for next girl though.
I have one and love it, rock solid since 2015. That being said I'm sure there are other high quality meters. I love the cute kit the Apera comes in and I'm having to restrain myself from buying on cute when I have perfectly good meters. So there are plenty of good meters out there.
My bad, I didn't notice the one posted by @Gemtree was HM Digital brand. The "TDS-3" I had was a no-name and had no calibration adjustment. There used to be loads of them on ebay.
calvin.m16
Well-Known Member
Have you checked accuracy with a new meter? I've had a couple of those cheaper ones like that (different brand same buttons) and it was off like 400 PPM after a few years.
waterproof808
Well-Known Member
Bluelab Truncheon is the shit
Gemtree
Well-Known Member
I bought one way back and someone at the grow house stole it a week later
amneziaHaze
Well-Known Member
I have 1 ppm/ec meter 2 years old for 2$ works great and i bought a new one for 7 dolar that messures 7 types of salts and ph.both show the same.i just had to buy a new ph pen i guess after a year of no use the little spunge becaame a rock.
Kola_Kreator
Well-Known Member
There no difference between a tds ppm or ec metre. It measures the conductivity of the solution and then converts it to which ever units you prefer. Most metres you just scroll with a button through the various scales.
hotrodharley
Well-Known Member
$102 delivered. I remember when they were much more. Top quality components and a fine tool.
Bluelab Original Truncheon Nutrient Meter https://a.co/d/2l5OJ3C
calvin.m16
Well-Known Member
Mine stopped reading after 2 years. I now feed using volume of maxibloom. ph 6.0 no need for meters when you know what to give them and use consistent products and quality brands like General Hydroponics.
Cpappa27
Well-Known Member
Did you figure it out bud? If not give me some more details. Whats in your soil, what do you feed and water and how often. Also a picture of the plant would really help. From what you said it sounds hungry and I doubt its lockout, thats pretty rare unless you really messed up. I await your info to better assist.
Cpappa27
Well-Known Member
Are you in soil?
I spent $60 on several brands of cheap ph/ec/tds meters from amazon before I finally bought a Hanna combo pen. My friend has one as well, that's why I got mine. He worked in a water testing lab so he knew about hanna quality from the instruments they used.
Mine is over a year old now, and working perfectly. I used the included hanna storage solution in the cap when I had to store it for a few months off, I also stored the pen in a large mason jar with a moisture pack to prevent the tip from drying out. They sell replacement tips so an entirely new pen is not required if the tip does malfunction. I know it is top dollar, but so far, well worth the investment. Unfortunately, the price is now $225, I paid $150. Inflation sucks!
Mine is over a year old now, and working perfectly. I used the included hanna storage solution in the cap when I had to store it for a few months off, I also stored the pen in a large mason jar with a moisture pack to prevent the tip from drying out. They sell replacement tips so an entirely new pen is not required if the tip does malfunction. I know it is top dollar, but so far, well worth the investment. Unfortunately, the price is now $225, I paid $150. Inflation sucks!