The Aquamaster PH-meter is very simple to operate and maintain. The meter has a build in thermometer to compensate the PH measurements to the temperature of the water.
The temperature can also be read on the meters display. So it’s actualy also a thermometer, 2 in 1.
The Aquamaster PH-meter has already been calibrated. By normal regular use it needs to be recalibrated 3 x per year. This can be easily done with the Aquamaster calibration liquids.
Cleaning and storing the meter is best done by poring some “storing liquid” inside the protective cap.
Over time the measurements will become less accurate. Instead of buying a whole new meter you just need to replace the electrode where the sensors are build in and your meter is as good as new again.