YIERYI Smart pH Meter, Seawater Salinity Tester, pH/Salt/Temp Tester for Fish Tank Aquariums Aquaculture

3-in-1 pH Monitor: Wall-mountable rechargeable continuous monitor tester is widely used to measure the pH/Salinity/Temperature of water. clear LCD with backlight, 3 results displayed simultaneously. can online monitoring for a long time. pH electrode We use the international common BNC-Q9 plug, the pH probe can be replaced. In case of wearing and tearing after a period of time, you can just change the electrodes instead of the whole unit.Calibration pH Tester: pH Monitor test temperature in ℃/℉(switchable unit), automatic temperature compensation. pH calibration powders and salinity calibration solution are included in the set. calibrates easily and offers safer and more precise measurements. each set of products has passed the calibration liquid test function qualified before shipment.Water Quality Tester with Output Power Relay: Plug in your own device (e.g. oxygen pump, CO2-regulator, or other pH&salinity generation devices) into the corresponding pH or salinity output power soc