Test Tube pH Pens Please Select an Option::850066 | Test Tube pH Pen w/Flat Tip and temperature measurements are simultaneously

and temperature measurements are simultaneously displayed on three backlit LCDs which can be easily viewed at a distance—even in low light

Place plant into the planting hold and backfill with soil

spill pillows) available for immediate use

Using the Gavita Master EL3 Controller (sold separately)

it can be used from seedling to harvest

Test Tube pH Pens Please Select an Option::850066 | Test Tube pH Pen w/Flat Tip and temperature measurements are simultaneouslyFits 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