Fish Tanks & Supplies

Kelisdi Digital Pool Water Tester High Accuracy Meter Portable Pool Salt Meter Water Testing Instrument Easy To Use Great instrument for any aquariums, the fishing industry, swimming pools, school laboratories, food & beverages, drinking water Multifunctional detection pen, capable of detecting acidity, conductivity, total solubility of solids, salinity, and... Kelisdi Digital Pool Water Tester High Accuracy Meter Portable Pool Salt Meter Water Testing Instrument Easy To Use