4-In-1 pH & TDS Meter Set: A very complete kit to check the water quality. The package includes a pH Meter pen, a 3 in 1 TDS meter pen(EC, TDS and Temp function) and 6x PH Calibration Powders. This water quality check set is protable to take out.Wide application - these meters are designed small and convenient. PH meter and TD&EC meter can test pH balance, ideal for testing drinking water, swimming pools, aquarium, spas, hydroponics, food and more. Soil tester is applicable to plants, garden, lawn and farm such as rice/vegetables/flowers etc.Fast & Accurate Results: Both meters show the results in seconds without the hassle of sending samples off to the lab! The TDS meter has a 0-9990 ppm range & +/- 2% accuracy and the pH meter has a 0.0-14.
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