New Apogee SQ-620/40 Quantum Meter
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Grow Lights Australia
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This is great, as it measures UV as well as infra-red heat that can be used to directly compare the efficiency of different lighting sources. If only they could combine it with a spectrometer. I don't know why PAR is only measured between 400nm and 700nm considering far red light (730nm) plays such an important role in plant morphology and photosynthesis.
Rocket Soul
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Excellent find and 4 y warranty on top. Getting a price quote as from my locals as i cant find it online. Does anyone know? And obviously how it would compare to a Licor?
CobKits
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accuracy wise the the apogee 520 is not that far off the accuracy of the Li-cor li-190r
going out to 1000nm is kind of overkill, you wont find anything past 800 with LEDs
i still recommend the cheap $150 hydrofarm quantum meters to people looking to do basic light measurements in their garden
this is more a tool for lighting designers/manufacturers, as a lot of people can come to wrong conclusions, like HPS PAR numbers would really be boosted by this but whats the point if its minimally photoactive?
going out to 1000nm is kind of overkill, you wont find anything past 800 with LEDs
i still recommend the cheap $150 hydrofarm quantum meters to people looking to do basic light measurements in their garden
this is more a tool for lighting designers/manufacturers, as a lot of people can come to wrong conclusions, like HPS PAR numbers would really be boosted by this but whats the point if its minimally photoactive?
so you see no benefit in being able to measure below 400? thats the interesting part, not being able to go up to 1000
Hydrofarm might be more accurate than anything else. Any side by side comparisons between the best and lesser ?
OLD MOTHER SATIVA
Well-Known Member
my hydrofarm crapped out fast..
so this apogee doesn't measure uvb?
so this apogee doesn't measure uvb?
yes and no, 10-25% of the uvb, depending on wavelength
OneHitDone
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Mega Cudo's homie!! You get an award for making your first meaningful post. Not to mention you actually started the thread
your post just shows that you never read any thread of mine. you should use the search and make up for it. maybe you’ll find some more useful stuff for you.
Mega Cudo's homie!! You get an award for making your first meaningful post. Not to mention you actually started the thread
CobKits
Well-Known Member
not with that sensor. it has near-zero response in the UVB rangeso you see no benefit in being able to measure below 400? thats the interesting part, not being able to go up to 1000
CobKits
Well-Known Member
interesting comparison on sensors (does not include latest offering SQ-620)
of interest are the graphs on pg 5 and the tables on pg 6.
apogee SQ-110 is not in the same class, and if i had to guess the hydrofarm would be right there with it. Again for light balancing of a garden (repeat measurments of same spectrum) either is still fine
even the li-cor isnt super accurate with HPS, none of them are super accurate with red LED. for our purposes +/- 2-3% is pretty minimal
by the metric of that paper, the response of the SQ-620 will exaggerate actual PAR (by definition of 400-700 nm) because it will sum data outside of the useful PAR range
of interest are the graphs on pg 5 and the tables on pg 6.
apogee SQ-110 is not in the same class, and if i had to guess the hydrofarm would be right there with it. Again for light balancing of a garden (repeat measurments of same spectrum) either is still fine
even the li-cor isnt super accurate with HPS, none of them are super accurate with red LED. for our purposes +/- 2-3% is pretty minimal
by the metric of that paper, the response of the SQ-620 will exaggerate actual PAR (by definition of 400-700 nm) because it will sum data outside of the useful PAR range
Rocket Soul
Well-Known Member
I had the 620 sensor quoted at 486€ + tax. They want you to buy a data logger aswelll for 383 but not sure its needed. Will find out
no usb version this time?
PSUAGRO.
Well-Known Member
It will come, after the early adopters fund it.... Lol
What the official term for 380-780nm now? Par+, Cpar? Don't remember
Edit...Wtf, two posts? Riu is messing with me
Rocket Soul
Well-Known Member
I just had some or prices never seen any datasheet but ive querried the need for datalogger with the distributer. If its just the 500ish id say its good deal for the enquiring minnd
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