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It is classified as a Group 3 carcinogen by the International Agency for Research on Cancer (IARC)
Most growers have their own requirements
Features LED + CMH + HPS All From One Controller Up to 120 Units
6” filters 4+ times
Test Tube pH Pens flowering It is classified as aFits standard test tubes 16 x 50 mm or larger. Highly stable and accurate readings with a large LCD display. Designed for simple one hand operation. Automatically calibrates to pH 4, 7 and 10 buffers and can be adjusted to recognize some other non standard buffers as well. Features hold function, and auto power off with low battery indicator. General Purpose Glass Probe: EPA compliant for labs and wine Penetration Probe: for food & soil Flat Tip
