PPM meter

I just bought a Sunleave TDS Expert Plus meter. I want to dial in on my ladies. Anyone here use one?

Yes, great tool.

I now use 40ml of nutes per gallon instead of the 20 they recommend.

Before tds meter 550ppm, now 1150ppm.

I see great improvement in growth in a few days.

With all the settings, and being new with TDS meters, I don't know what mode to have it on to get the correct reading. I use Fox Farm nutes and can not figure it out. Could you help me?

Just found something:

Difference is what chemical it is basing it's PPM 'guess' off of. All PPM meters are EC meters that convert. I prefer to use the NaCL EC setting on mine, and then convert to ppm (.5) or ppm (.7) depending on situation using the scale below. The only difference between the 3 ec settings are the temperature compensation curves. I choose EC NaCl.

(EC(mS))—(PPM.5)—(PPM.7)—(CF)
.4———200————-280———–4—–seedling/ rooted clones
.6———300————-420———–6—–
.8———400————-560———–8—–veg
1.0——–500————-700———-10
1.2——–600————-840———-12
1.4——–700————-980———-14
1.6——–800————-1120———16—–aggressive
1.8——–900————-1260———18
2.0——–1000————1400———20—–super aggressive
2.2——–1100————1540———22
2.4——–1200————1680———24

So if it reads 956, your ec is .956.... if it reads 104 and the x10 symbol is blinking, this is 1.04 EC, make sense?

Reason I prefer EC is it never changes. Too often people throw around PPM measurements and never note if its the .5 or .7 scale. As you can see this makes a big difference... at 1EC, the (.5)ppm is 500, but the (.7)pmm is 700. If the person doesn't mention what scale, we really have no clue which to choose.

With this meter you can measure EC (NaCL, 442, KCL) or PPM (NaCl & KCL are .5 scales) and (442 is a .7 scale)

THANK YOU SOOOOO MUCH SOMEGUY15!!!