Quantum PAR Meter Full-Spectrum High Precision PPFD Tester for Photosynthetic Activity of Indoor and Outdoor Plants 400-700nm Light Lux Tester

Very good.

Amazingly accurate for the price.Have recommended it to a lot of other growers.

Very impressed with instrument has a quality feel to it. It is used for measureing light levels of growing light for me vegetable plant growing. instructions are good

Brillliant, accurate and much better that dodgy apps or LUX meters. Not the cheapest accessory for a grow but worth the money as a long term investment, happy to recommend.

Works as should

This will give you peace of mind that your lighting is being used effectively and efficiently. I tried the phone app and have found it to be under reading at all levels so not very accurate.

Funktioniert extrem präzise und zeigt mir genau an ob alles stimmt oder nicht, bin sehr glücklich dass ich mich nicht mehr auf das dämliche Handy verlassen muss wo die Werte sowieso kaum stimmen wenn man nicht eine entsprechende teure Kamera hat.

It's not the professional version that you see Hollywood producers carrying. I don't need all that. I just want basic readings from LED lights for plant growth factors. For that it does quite well. I've messed around with it using sunshine as well. It seems pretty accurate. Full mid day summer sun should max it out. It does. Evening sun, even though it seems 'weak' to our eyes, is still magnitudes brighter than most commercial LED plant lights. You can measure it yourself, with this meter. I can't vouch for the exact accuracy but it will certainly give you a proper idea of what you are working with. I used it to dial in my sprout dome and grow tent. Too much light makes the baby go blind, so to speak. Read the charts and figure out how much light is good for your plants.

Pratique, fiable et pas trop cher !

Indispensabile per non improvvisare

Great PAR meter. I use it to monitor the ppfd of my grow lights. Very effective. My plants are doing well because of it