... of test equipment for pH, conductivity, TDS, ORP, ion specific, and other water quality parameters. KL-009(I) Pocket-size PH meter ... . Just dip it in the pond, aquarium or swimming pool and read the reading on the digital display in just ... Aquariums, Aquacultures, Fish Hatcheries, Food Processing, Laboratory, Paper Industry, Swimming Pool, School & colleges.Specifications: ModelKL-009(I)KL-009(I)AKL ...