Smart Phone PAR / Light Meter App, "Korona" - Compared to Apogee MQ500

2

2com

Well-Known Member
"Growing Answers", on youtube, did a test and review of this new par meter app called "Korona". He also compared to an Apogee MQ500 par meter. The results are pretty damn impressive. Watch the video if you're gonna try it out, he gives valuable instructions/tips on how to set up your phone and use the app for accurate results. Right now it's just iOS, if you have an iPhone, please go try it out and share some results ;) - that would be cool.

I hope it comes out for Android. If you have an Android phone, you can go to their webpage, scroll to the bottom, and sign up to be notified when it's available (and it might spur them on if you do, too): https://growlightmeter.com/

Here's the test/comparison:
 
2

2com

Well-Known Member
Also, check this out. I wonder if it's legit, and any good. There are mentions of "Dragon's Den", the show, on the website...hah. Interesting.
It supposedly measures PAR, spectrum, and more. It's just over the price of a 'newer' model Apogee par meter though and look at what it claims it can do (in canada anyways, if you know a cheap(er) place to get a par meter, specifically Apogee, please share).

thegrowkit.ca

Quantum PAR PPFD Lumen Meter - Grow Kit Canada

Accurately measures the light spectrum of grow lights Designed for LED, HPS, HID, T5, and CMH Grow Lights Measures the following specs PPFD (uMols) PAR Lumens (Lux) Blue % Red % UV % IR %
thegrowkit.ca thegrowkit.ca
 
H

Hygropia

Member
Hopefully they release android soon. I've tried a couple other apps and compared against the maps from tests with proper meters and they seem accurate enough to be useful information.
I'd guess that each phone and its sensor may give different readings in the same app. I'll try some other phones out and see.
 
2

2com

Well-Known Member
Hygropia said:
Hopefully they release android soon. I've tried a couple other apps and compared against the maps from tests with proper meters and they seem accurate enough to be useful information.
I'd guess that each phone and its sensor may give different readings in the same app. I'll try some other phones out and see.
Click to expand...
The android app is out.
 
Jjgrow420

Jjgrow420

Well-Known Member
2com said:
Also, check this out. I wonder if it's legit, and any good. There are mentions of "Dragon's Den", the show, on the website...hah. Interesting.
It supposedly measures PAR, spectrum, and more. It's just over the price of a 'newer' model Apogee par meter though and look at what it claims it can do (in canada anyways, if you know a cheap(er) place to get a par meter, specifically Apogee, please share).

thegrowkit.ca

Quantum PAR PPFD Lumen Meter - Grow Kit Canada

Accurately measures the light spectrum of grow lights Designed for LED, HPS, HID, T5, and CMH Grow Lights Measures the following specs PPFD (uMols) PAR Lumens (Lux) Blue % Red % UV % IR %
thegrowkit.ca thegrowkit.ca
Click to expand...
Just picked up a photobio from phantom off indoor growing canada
 
2

2com

Well-Known Member
Nice. Yea, more and more people are getting that one. Hopefully you'll let us know how it works out. If you can compare some readings with it and the photone app, that would be appreciated.
 
Jjgrow420

Jjgrow420

Well-Known Member
2com said:
Nice. Yea, more and more people are getting that one. Hopefully you'll let us know how it works out. If you can compare some readings with it and the photone app, that would be appreciated.
Click to expand...
I don't have that app but I have tent buddy. I'll check it out
 
2

2com

Well-Known Member
Jjgrow420 said:
I don't have that app but I have tent buddy. I'll check it out
Click to expand...
Migro compared several apps to the apogee. The photone was the closest. He's working with an app called "ppfd meter" though, and you can pair it with a bluetooth lux meter, they're working on making that option even more accurate. The photone app is quite good it appears.
 
Hollatchaboy

Hollatchaboy

Well-Known Member
2com said:
Migro compared several apps to the apogee. The photone was the closest. He's working with an app called "ppfd meter" though, and you can pair it with a bluetooth lux meter, they're working on making that option even more accurate. The photone app is quite good it appears.
Click to expand...
I've got that ppfd meter app. I got it about 4 months ago maybe. I don't have a meter to compare it to tho.
 
Rdubz

Rdubz

Well-Known Member
2com said:
It depends on the light/bulb/board. Eg: HLG gives figures for theirs, to convert.
Edit: Or, at least some info about the type of light source.
Click to expand...
I’m asking because the HPS option is locked on the app I can only use the Lux meter so I wanted to know what 400,000 lux would convert to with out paying for the app to find out
 
HippyHemulen

HippyHemulen

Member
I use PPFFD meter and lux light meter apps nothing to compare but i think its give something advice. I tested only how plants reacting to different lux and ppfd. Maybe new phones are more accurate cause better technology.
 
2

2com

Well-Known Member
Guys, a lot of these apps report numbers that are way off. Migro compared several. Just so you know. The one I was using was off my about 30% (from the new one, who's numbers actually seem to make sense).
 
Hollatchaboy

Hollatchaboy

Well-Known Member
2com said:
Guys, a lot of these apps report numbers that are way off. Migro compared several. Just so you know. The one I was using was off my about 30% (from the new one, who's numbers actually seem to make sense).
Click to expand...
The review Shane did on this apps, one of them was rated pretty good.
 
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