HM Digital Waterproof pH Meter Model PH-200 NatureVac Calibration and warranty are tighter

Calibration and warranty are tighter on the Apogee

5 delivers 100

We were tired of fighting with high temperatures that were killing our roots

the Breathable Wall is rigid product that allows zero light to pass throught ventilation holes (exhaust and intake) while allowing full air flow

HM Digital Waterproof pH Meter Model PH-200 NatureVac Calibration and warranty are tighterMeasures 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. Waterproof housing. Simultaneous temperature display. Measurement Range: 0 14 pH. Digital automatic calibration (one point), with digital fine tuning. Auto off function, data hold function and low battery indicator. Display: large and easy to read LCD screen includes simultaneous temperature