The pH meter is specially designed for testing the pH level of nutrient solutions. Just dip the sensor into test solution, stir and wait, then read a stable reading in about 20 seconds.
The unit is water resistant, allowing easy washing. Even if the meter is accidentally dropped into the water, it will remain afloat so as to enable immediate retrieval without damaging the electronics.
The energy saving feature shuts off the tester when it is not in use. The unit also displays a low battery symbol to warn you before it degrades the accuracy of important readings. It has digital calibration at the push of a button.