You will notice on the specs for the Apogee MQ-500 that the calibration uncertainty is +/- 5%! My 2 cents worth, unless you are a pro, save your money and get a good LUX meter for $35. Then take the reading and multiply it by .0145. That will get you pretty close for a PAR reading.
Ohhhh, awesome! Thanks for the tip!
its cheap enough.i have this par meter and i really like it for the money.mine had a bad battery,would not hold charge more than a few hours.but hydrofarm was quick to send me a shipping label and gave me a new unit that has held the first charge for over a month now so im real happy with them and their service.
Damn that looks nice but I dunno if I have the cash for that... not sure if buying a cheap LUX meter like the one I linked will be "accurate enough" for my needs or if I should save for something better.
its a good meter you chose,just that you will need to do conversions to par or just be happy with lux readings.theres is a coversion chart here somewhere on lux to par or ppfd.the meter i linked just does that for us.
Awesome, sounds good - at least it'll be a rough estimate at the very least. Good enough for me!
Check out the "par multiplier thread". The lux meter you selected will work fine. So after doing the multiplier conversions I use 50k to flower, 25k to veg, and 7k over clones. Then use the walls of your grow box and tweek your build for the most uniform readings across your canopy. Don't need an apogee for that d
Check out the "par multiplier thread". The lux meter you selected will work fine. So after doing the multiplier conversions I use 50k to flower, 25k to veg, and 7k over clones. Then use the walls of your grow box and tweek your build for the most uniform readings across your canopy. Don't need an apogee for that d
And if you get a free 5 gallon paint stir stick from Lowes you can tape your sensor on the end and move around the corners and canopy with ease.
*disclaimer...my personal opinion...your results my vary.
if thats true the $450 li-cor sensors seem like a better deal
You are a pro and credibility means a lot. Depending on the Licor sensor...they +/- 3 to 5%. I would LIKE a Licor...but I'm just a small hobbyist.
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I think they're aiming more at food production with this spectrum. That isn't a lot of blue for flowering strawberries indoors, for instance. That's not bad for microgreens and the like either. Citizen has previously stated they're not too interested in catering to cannabis growers, which with them being a Japanese company not bound by much US law regarding the matter, is a pretty foolish decision. Regardless, these products are not designed with cannabis growers in the forefront of their minds.
There was a statement from citizen regarding the use of their products for cannabis cultivation. They're so upset about it that they don't sell their horti cobs here, but they have to sell their regular cobs in the US, otherwise they would go out of business.
Sure is a weird position to have....arent they all about making money..? Ya know...like a normal business..? Why do they care what their end product is used for...