Par-wise meter question

[slayerhellfire]

Has anyone found out how accurate these are, I have one seems great but I have nothing to compare it too, I heard rumblings about how there either higher or low but who really knows for sure ? Any input would be greatly appreciated!

 

[ISpeakForTheSeas]

@telegraham and a few others in the lighting forum have been looking into this - it seems to be fairly inaccurate, unfortunately, but maybe some of them will have some more insight for you.

 

[telegraham]

Has anyone found out how accurate these are, I have one seems great but I have nothing to compare it too, I heard rumblings about how there either higher or low but who really knows for sure ? Any input would be greatly appreciated!

My PARwise reads 20% low as compared to the Apogee 500 series. Regarding accuracy, because so many have used the Apogee to measure PAR, I'm more interested in Apogee alignment than whether or not the PARwise is "accurate." If you're asking about the spectrometer's functionality, it's a toy compared to real spectrometers. Don't expect much for $300.

 

[slayerhellfire]

My PARwise reads 20% low as compared to the Apogee 500 series. Regarding accuracy, because so many have used the Apogee to measure PAR, I'm more interested in Apogee alignment than whether or not the PARwise is "accurate." If you're asking about the spectrometer's functionality, it's a toy compared to real spectrometers. Don't expect much for $300.

I just don't want to melt my corals so I am looking at it in a sense of giving the par reading, I running all zoas, and LPS in my display and I can't get above 30 % on my new reef breeders over my 40 long about 13 inches height, light is about 14 inches off the water getting 150 par where my torches are

 

[telegraham]

Here's another option, and the one I recommend. https://www.reef2reef.com/threads/v...um-r-g-b-par-seperately.1011898/post-12165813

https://a.co/d/8qCGwan