HM Digital PH-200 Waterproof pH/Temperature Meter GR16045 All Natural Plant Food for

All Natural Plant Food for Indoor Plants

Stack may increase germination rates and plant vigor

Green LEDs won’t interrupt dark cycles

and these are suitable for saltwater operation

using 35% less power than a 1000W DE fixture

HM Digital PH-200 Waterproof pH/Temperature Meter GR16045 All Natural Plant Food forFEATURES Measures pH and temperature Auto ranging three point calibration with digital fine tuning Includes 4 pH buffer solution in a sponge embedded in a clear cap, so you can see if it's dried up Waterproof housing Simultaneous temperature display Measurement Range: 0 14 pH Digital Calibration (push button)Auto off function, data hold function and low battery indicatorDisplay: large and easy to read LCD screen includes simultaneous temperature