Hi guys I received my Ec pen today it’s a grow gadgets budget Ec but I don’t understand the reading the one I used to have would just say 1.5 or whatever but this one I tested nutes and it gives a 3 digit number like 100 for instance anyone able to help thanks a lot in advance
Help with Ec pen
- Thread starter Mrbignugs
- Start date
Nope_49595933949
Well-Known Member
I don't use one but maybe it's giving the ppm reading?
Herb & Suds
Well-Known Member
Billy the Mountain
Well-Known Member
PJ Diaz
Well-Known Member
It shows a 10 factor on the display, so your 186ppm is measuring 0.29 EC, which is fairly close in measurement. A display of 150, with the 10-factor in the display, should be 1.5 EC. Make up a batch of 750 ppm, and see if it measures 150 on your EC meter.
blueberrymilkshake
Well-Known Member
This thread is giving me flashbacks. I had this struggle recently. It took me weeks for it to click with me, charts be damned.
See post #4.
The meters measure EC. PPM is a conversion from EC to ppm, but there are three different conversions!
That's why it best to go by EC.
Herb & Suds
Well-Known Member
I give the op a month lol
The black one in pics that says EC says 147 so is that 1.47 EC because if so I get that if not what does it meen I did have an essentials one but cannot find it so bought this quick that one just displayed 1.4-1.5 an so on so If the 147 does actually mean 1.47 ec I get that
Hard to say whats going on. It appears your grey TDS-3 is using the middle scale on the chart in post #4, that or one or both meters are not accurate. Also, why do the instructions for a TDS meter call it "Budget PH Meter"?
I suggest checking both meters with calibration solution. After buying calibration solution I threw my two cheap meters (including a TDS-3) in the trash and bought two used HM Digital COM-80's off ebay for a about $10 each.
blueberrymilkshake
Well-Known Member
It's a budget meter. They couldn't afford the decimal system.
wow I didn’t even notice it said that
I can ring the shop tomorrow to enquire about this budget pen…. Should’ve just paid the extra £15 an just replaced with the £40one in the first place oh well lesson learned I guess and sorry if I came across any kind of way back there I appreciate all the help guys even if I can be a bit slow after 15 joints
happy growing
I didn’t even notice it said that I can ring the shop tomorrow to enquire about this budget pen…. Should’ve just paid the extra £15 an just replaced with the £40one in the first place oh well lesson learned I guess and sorry if I came across any kind of way back there I appreciate all the help guys even if I can be a bit slow after 15 joints happy growing
Billy the Mountain
Well-Known Member
No offense to OP, that's a terrible EC meter. None of the $10 Amazon/Ebay meters are worth a dollar
Get or make some 1EC calibration solution; you may be surprised
The two meters in the pics differ by ~25-30%
Get or make some 1EC calibration solution; you may be surprised
The two meters in the pics differ by ~25-30%
Jjgrow420
Well-Known Member
Instructions for using a budget TDS meter...
1: take the meter and find a door in your house that seems to swing open all the time.
2: take the meter and wedge it under the door so it holds it closed.
You now have the perfect doorstop.
3: go and buy a Hanna, or a bluelab
Works like a charm, everytime.
1: take the meter and find a door in your house that seems to swing open all the time.
2: take the meter and wedge it under the door so it holds it closed.
You now have the perfect doorstop.
3: go and buy a Hanna, or a bluelab
Works like a charm, everytime.