Hortivision Par Meter + Extendable Measurement Stick thermometers-hygrometers offering eceptional value for any

offering eceptional value for any size hydroponic system

The adjustable brass flow control valve can be dialled up or down for either heavier or lighter (drier) applications

Instructions -

lets you track and optimize every essential environmental condition in your grow

Hortivision Par Meter + Extendable Measurement Stick thermometers-hygrometers offering eceptional value for anyThe HORTI VISION PRO SERIES 2 QUANTUM PAR METER is crafted to measure PAR (Photosynthetically Active Radiation) flux across wavelengths spanning from 400 to 700nm. This meter relies on the correlation between photon absorption within this spectrum and the photosynthesis rate in plants. Such measurements are crucial for horticultural research and tracking plant physiology. BOX CONTENTS: OPERATING INSTRUCTIONS: LIGHT INTENSITY GUIDE FOR PLANTS: * Please