What EC meter are u guys using?
- Thread starter Darknes01
- Start date
Serverchris
Well-Known Member
My bluelab does the same thing but 25 to 30ppm is close enough. Actually my first bluelab was so far off out of the box that I had to send it back. The cheap ppm pens are worse, I went my whole first grow thinking I was feeding 1800ppm and they still looked hungry, well got the bluelab and the bluelab read 600ppm on the same solution the cheap one read 1800ppm.
I'm happy with my COM-80's, bought two used ones off ebay.... after dicovering my cheapo is inaccurate.
How are you liking it the pulse?? Mine seemed to work better in soil not as accurate in pro mix?
Nizza
Well-Known Member
I haven't used it much but I did have a plant that wasn't eating and with a quick check on my pulse showed a 2.5 ec. I fixed it by not feeding it and just leeching the pot and I will eventually get to figuring out how it works in coco coir but for now it works great as a coco/soil medium ec meter. The moisture part I think I need to get used to and do some testing
rkymtnman
Well-Known Member
IMO you can get a decent EC for about 30 to 40$ and a really good pH for about $100. pH accuracy > EC accuracy
Billy the Mountain
Well-Known Member
Apera makes a good $50 pH meter
The $10 ones are less than useless.
Drops are cheap, accurate, and consistent.
The $10 ones are less than useless.
Drops are cheap, accurate, and consistent.
I have a Bluelab Monitor (MONGUA) and the pH pen and EC pen from the Grower's Toolkit. The monitor runs continuously and I use the EC Pen for mixing a basic batch of full strength nutes. Once I get the EC of the full strength nutes, I can calculate the amounts to create nute water at the required EC.
A few weeks ago, I noticed that the EC readings that I was getting from the monitor were out of whack with the readings from the pen. This came up with autos in flower so the reading were low, as in 0.8 EC range so I long ago switched to 500 PPM readings. The reading from the monitor could be 450 and the pen would read 400. In most cases, that not too much but is seems that autos in flower are really finicky. Also, I expected that the pen and the monitor would be "real close"…maybe 10 or, perhaps, 20
I calibrated the pen and the monitor using 2.77 EC solution. With a PPM of 1385, pen came in at 1390 so that's dead on but the monitor came in at 1420 and 1430. When I contacted Bluelab, they told me that they consider +/- 50 PPM to be accurate.
While I'd like to have both devices report a closer set of values, I had to accept that the absolute value is not that important. Even with the low EC values that I was working with, the key point is that TDS is going up or down and neither the PPM itself nor the amount of change are that important.
My tuppence…
A few weeks ago, I noticed that the EC readings that I was getting from the monitor were out of whack with the readings from the pen. This came up with autos in flower so the reading were low, as in 0.8 EC range so I long ago switched to 500 PPM readings. The reading from the monitor could be 450 and the pen would read 400. In most cases, that not too much but is seems that autos in flower are really finicky. Also, I expected that the pen and the monitor would be "real close"…maybe 10 or, perhaps, 20
I calibrated the pen and the monitor using 2.77 EC solution. With a PPM of 1385, pen came in at 1390 so that's dead on but the monitor came in at 1420 and 1430. When I contacted Bluelab, they told me that they consider +/- 50 PPM to be accurate.
While I'd like to have both devices report a closer set of values, I had to accept that the absolute value is not that important. Even with the low EC values that I was working with, the key point is that TDS is going up or down and neither the PPM itself nor the amount of change are that important.
My tuppence…