pHScan 2 waterproof For measuring the pH (acidity) of liquid such as pool water.

Range: 1.0 to 15.0 pH extended range

Push button calibration

Auto-off

Automatic temperature calibration

HOLD function

Self diagnostic

Accuracy: 0.1 pH

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TDS Tester Measure the TDS level of pool and spa water. Model TDSTestr High LCD Display Single Range 0 to 19.90 mS/cm Resolution 0.10 mS/cm Accuracy ±1% of Full Scale Push Button Calibration 1 point Munual Auto-Off Auto-Power off after 8.5 minutes ATC Yes Hold Button Yes Self Diagnostic Message Codes Waterproof IP67 Waterproof Rating Batteries 4 x 1.5V Battery Life >150 hrs Size 16.5 cm x 3.8 cm Weight 90 g Warranty Two year warranty against manufacturing defects and six months on the electrodes. Code Description PPROBE350 TDSTestrHigh TDS Tester