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VEVOR Benchtop pH Meter, 0-14 pH Range, Laboratory Tester Kit with Large Backlit Display, Calibration Solutions, Power Adapter, Stores Up to 50 Readings, for Temperature and Water Quality Testing

VEVOR pH Meter, 0-14 pH Range, IP68 Waterproof Probe, 3-Point Auto Calibration, Portable Tester Kit with Calibration Powder Packets, Temperature Probe, Carrying Case, for Drinking Water, Hydroponics

VEVOR TDS Meter, 0-9990 ppm Measuring Range, EC (Conductivity) /TDS (ppm) Multi-Parameter Measurement, Digital Water Tester with ATC, Clear VA Display Screen, for Drinking Water Quality Testing

VEVOR pH Meter, Accurate pH/EC (Conductivity)/TDS (ppm) Multi-Parameter Measurement, IP68 Waterproof Probe, Pocket Tester Kit with Calibration Powder Packets, VA Display, for Water Quality Testing

VEVOR Food pH Meter, 0-14 pH Range, IP68 Waterproof Probe, Pocket Tester Kit with Automatic Temperature Compensation, Calibration Powder Packets, Easy to Read, for Food Fermentation, Dough, Meat

VEVOR pH Meter, 0-14 pH Range, IP68 Waterproof Probe, Pocket Tester Kit with Calibration Powder Packets, VA Display Screen, for Drinking Water, Hydroponics, and Aquarium Water Quality Testing