[Portable Pool Tester] This water quality tester is designed to measure pH and chlorine levels in swimming pools and spas. It is easy to operate and provides quick, accurate results. The digital screen displays pH and chlorine readings clearly for convenient monitoring.[Precise Measurement] Before first use, calibrate the tester to the designated test point. This device has an accuracy of 0.1 pH units with a measurement range of pH 5.59.0 and chlorine 0.56.0 ppm. For accurate chlorine testing, always adjust the device to the calibration point prior to each use.[Wide Applications] This compact pH meter is portable and suitable for various water testing needs, including swimming pools, spas, aquariums, tap water, hydroponics, and laboratory use.[Durable Material] Constructed with a high-quality plastic housing, this tester is sturdy and easy to use without the need for traditional chemical test kits.Specifications: Measuring Range: pH: 5.59.0 Chlorine: 0.56.0 ppm Probe Length: approximately 150mm Power Supply: 1 x AA alkaline battery (1.5V, not included) Recommended pH level for pools and spas: 7.27.8 Recommended chlorine level for pools and spas: 1.21.7 ppm Save time and effort with this electronic water quality tester. Note: Do not immerse the probe in any liquid other than pool or spa water. Material: Plastic Color: As shown in image Package Contents: 1 x Water Quality Monitor Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement may vary by 13 cm.