The PCE Instruments PCE-PH20S pH meter is designed for precise water quality analysis and environmental testing. Manufactured by PCE Instruments, it is ideal for measuring pH levels in freshwater, pools, ponds, and wastewater. Typical applications include fish breeding, fish tank maintenance, and swimming pool water testing. https://elecena.pl/product/28584892/pce-instruments-pce-ph20s-ph-meter-waterproof-external-electrode-easy-use 2025-05-03 https://elecena.pl/product/28584892/pce-instruments-pce-ph20s-ph-meter-waterproof-external-electrode-easy-use 2025-08-25