Photo 1 of YINMIK Pool Salt Tester, Digital 5 in 1 pH TDS EC Salinity Meter with Calibration Solution Kit, Simultaneous Display ppm pH for Saltwater Pool, Aquarium, Hot Tub, Spa, Hydroponics, Home Brew&Pickling

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Photo 1 of YINMIK Pool Salt Tester, Digital 5 in 1 pH TDS EC Salinity Meter with Calibration Solution Kit, Simultaneous Display ppm pH for Saltwater Pool, Aquarium, Hot Tub, Spa, Hydroponics, Home Brew&PicklingPhoto 2 of YINMIK Pool Salt Tester, Digital 5 in 1 pH TDS EC Salinity Meter with Calibration Solution Kit, Simultaneous Display ppm pH for Saltwater Pool, Aquarium, Hot Tub, Spa, Hydroponics, Home Brew&Pickling