Apogee MQ-500 PAR PPFD Quantum Meter | 0-4000 micromol/m2/s, plus or minus 5% Microbial & Biostimulants humic acid plays a vital

humic acid plays a vital role in improving soil structure

Athena Blended - PK (0-4-5) - 55 Gallon Athena PK is a meticulously balanced bloom booster that complements Athena Bloom fertilizers

The thoughtful addition of an observation window allows for progress checks without disturbing the internal climate

so no vault ships with it

An IP44 rating keeps dust and liquid out in humid rooms

Apogee MQ-500 PAR PPFD Quantum Meter | 0-4000 micromol/m2/s, plus or minus 5% Microbial & Biostimulants humic acid plays a vitalApogee MQ 500 PAR PPFD Quantum Meter for Lab Grade PPFD Readings The Apogee MQ 500 is the meter most commercial growers reach for when canopy maps need to hold up to a state inspector. A blue enhanced silicon photodiode plus a custom optical filter holds calibration uncertainty within plus or minus 5% across the 400 700 nm PAR band. Measurement runs to 4,000 micromol m2 s past the saturation point of any LED or HPS in production. Long term drift is