Test Tube pH Pens Please Select an Option::850067 | Test Tube pH Pen w/Penetration Probe Specially formulated for storing GroLine

Specially formulated for storing GroLine electrodes

and Dimensions of 13

they lead to an even soil coverage for optimal absorption of water and nutrients

This QuanTanium tumbler is compatible with many CenturionPro units and is resistant to damage thanks to its nonstick properties that prevent trichomes from sticking to its surface

The iLogic™9 Full Spectrum LED grow light is the go-to high-efficiency fixture for sealed grow rooms enhanced with CO2 supplementation

Test Tube pH Pens Please Select an Option::850067 | Test Tube pH Pen w/Penetration Probe Specially formulated for storing GroLineFits 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