Ongrok Ongrok Colour-Coded Hygrometer (6 /Pk) Mammoth Grow tents Bulb or led strip not

Bulb or led strip not included

THICKNESS : 4 mil

Coarse Perlite

45" PVC hose

These hygrometers are also perfect for humidors

Ongrok Ongrok Colour-Coded Hygrometer (6 /Pk) Mammoth Grow tents Bulb or led strip notOngrok Colour Coded Hygrometer (6 Pack) COMPACT DESIGN Their small size makes it easier to fit in almost everywhere! Great for use at home, office, car, schools as well as places equipped with air condition, etc. These hygrometers are also perfect for humidors, sealed jars, bags or pouches, violin or Guitar cases, wine cellars or wherever you want to track the humidity & temperature. LCD DISPLAY Our ONGROK mini digital hygrometers allow you to easily