Harbor notes
Glass shelves · bracketed field sheets
Description
By igniting plant and root growth
in winter it recirculates warm air to cut heating costs
A low-pressure cutoff protects the pump if incoming water drops out
Measure like a pro
resilience
PHOTOBIO Advanced Quantum PAR Meter (Micromols) Silicas By igniting plant and rootPHOTOBIO Advanced Quantum PAR Meter for Daily PPFD Checks PHOTOBIO's Advanced Quantum PAR Meter is the in tent PPFD tool. It targets growers who want a real 400 700 nm reading without stepping up to an Apogee MQ 500. Hawthorne builds it around a remote quantum sensor. The 12 ft straight cable plus a short coiled lead lets the handheld display sit on a workbench. The sensor stays at canopy height. Useful when dialing light height across a 4x4 or 5x5
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