Water Quality Testing Device Digital LCD 3 In 1 Tester CL/TEMP/H2 Meter Pen For Aquarium, Swimming Pool& Hydroponics

High-concerned chemical : None Origin : Mainland China Specification 1 : water quality tester Specification 2 : H2 meter Specification 3 : drinking water analysis Specification 4 : fish pond water tester Specification 5 : aquarium water test