The Grow Awards 2026 🏆 
Ph meter
Weedman420highstarted grow question 5y ago
Can anyone reccomend a good fairly cheap ph meter
Solved
Setup. Sensors
likes
Canadamade420answered grow question 5y ago
Hey I use the one from amazon for $15.99cad and it’s called lumo-x. And if you need a PPM meter they have vivosun brand combo set for $26.99cad. Hope that helps and happy growing
Similar Grow Questions
Solved
I_T_C_R_W___GROW
perfekt small grow - what is needed? What a perfekt light needs or should have?What features should a universal Growbox have ?
And what a perfekt light (for a 50x50cm Area in this box ) must have- for seed / settling/grow/& bloom & maintaince like holding a Mother near endless? Can you all help me to build the perfect diy box?2mo ago
1
3
Solved
KCduzit
How can I get my humidity down? (Basement grow tent)Plants are currently sitting at Rh 55% on my controller on day one of flower. I have a small $40 probreeze (Amazon) dehumidifier In the tent and am using a 4 inch intake (full strength) and 6 inch exhaust fan (1/4 strength). Day Temps around 25 Celsius in basement5y ago
2
3
Solved
NomadGrowDad
Where to measure RH in a grow tent?When measuring RH within a grow tent where is best location hydrometer to record an accurate reading? I have 3 all calibrated together and placed at canopy, between light and canopy, and above light. There is a 20% difference between all three readings. I’m now in flower.Setup. Sensors
5y ago
1
4
Solved
greenAF
what c02 controllers do you recommend?Anyone well versed in C02 supplementing? I have a controller but it's garbage, can anyone recommend a few good ones? Right now I'm using a 3 by 3 tent I will be buying a larger one, but all my growing will be happening in a tent.Week 1
Setup. Sensors
2y ago
2
Solved
Weedman420high
Ph meterCan anyone reccomend a good fairly cheap ph meterSetup. Sensors
5y ago
1
1
Solved
Z1984
RH% and temperatureHi guys, got the transplant done today as suggested by Burmese.
I have an issue after transplant:
- My RH doesn't seem to go below 62%
- Is this level bad for the plant?
- What is the optimum RH and Temp for this strain?
- Or average optimum temp and RH in general?
Thank you :)5y ago
1
1
Solved
ClydeGrows
pH meter calibrationSorry for all the Q's lately haha! pH meter problem. Trying to calibrate and it reads all three solutions as 3.9-4.3?? I used distilled water and fresh sachets. Literally arrived today and it ain't fucking working 😂😂 universe is against my grow :(Setup. Sensors
3y ago
8
6
Solved
ItalianDesertBalcony
Are these photos good enough?Should I invest in a stronger lense clip for my cell phone or are these photos clear enough to judge harvest time?Buds. Other
Plant. Other
Setup. Sensors
2mo ago
1
6
Solved
PEAKYPLANTERS
Best Testerhey brothers ... do you recommend a good electronic tester that can measure both ph and Ec? obviously easy to find and at a good price ... but that does its job well ...
thanks in advance ... i trust you ...
And always a great harvest for all of youWeek 11
Setup. Sensors
6y ago
5
4
Solved
russrahl
Can I use Smart Water to mix up ph powder calibration solutions?Cant find deionized water where I live to mix up my ph powder solutions and be confident they are correct. I used generic distilled water before but later realized it was not neutral at 7.0 ph. So long story short google says Smart Water is 6.98 ph, Think I can use it instead?Week 7
Setup. Sensors
5y ago
2
2
Solved
AirDuster
Help in understanding instrument readings for hydroI'd like to undertand what the importance or significance of these numbers are, and if they indicate issues to resolve:
Hydro - 30 litre reservoir
ph: 5.91 - pretty sure that's in the perfect range for hydro
ppm 1502 - no idea
μS/cm - 3195 - no idea
humidity 41%
Temp: 21 - 36c6y ago
4
4
Solved
Mooncat
EC/PPM Values for SoilI just bought some EC/PPM Meter and cant find some Chart about the right values for growing in Soil...i know how and so on but yeah.Setup. Sensors
Feeding. Other
5y ago
3
Solved
dataTwiiix
Ph mètre conditionnement apera ph 20Voilà je viens d'acheter un ph mètre apera hppmais malheureusement je n'ai pas encore de solution KCL pour le conditionnement de l'électrode. J'ai lu que je pouvais utiliser les solutions tampon de 4 et de 7 pour le conditionnement. Dois-je remplir le capuchon de solution?4y ago
1
1
Solved
Chucky324
Hey...Grow Diaries...What is going on?What is up with this web site. Shuts down Friday and starts up on Monday. Is someone having a long weekend every weekend? Has this site been hacked? Should I be concerned because you have some personal info of mine? Can you tell us what's going on so we are not so concerned?Setup. Sensors
5y ago
3
5
Solved
AliceInChainsmoke
Ph devicesWhat ph pens/meters/testers do you recommend? Any good digital ones on Amazon?Setup. Sensors
5y ago
3
3
Solved
AirDuster
Reducing PPM without changing water in hydroThanks all for guidance on my previous question. As a follow up, can PPM be lowered by reducing feeding until they hit the right range? Currently 1500ppm but seems this is too high. Currently following the AdvancedNutrients plan.Other. General questions
Setup. Sensors
Feeding. Schedule
6y ago
3
4
Solved
snowmanbl90d
PH TestingI have a vivosum ph meter, a ph tester for the up/down ph liquids and ph test strips. All of them don't seem to agree with each other with in a range of 1 ph across the ph scale. My question is what is the most reliable or is there a different method I should use?5y ago
3
4