The PH tester meter with probe is used for water quality testing in swimming pools or hydromassage pools, quickly test PH and cl2. Features: Fast and accurate measurements of ph and cl2. To keep your pool or spa within the secure ranges. Portable design, easy and comfortable to operate. High precision design, with dial board, easy to read. Suitable for swimming pool, spa, hot tub, etc. Specifications: Material: ABS Color: White Recommended cl2 level for swimming pools and spa: 1.2 to 1.7ppm Recommended ph level for swimming pools and spa: 7.2 to 7.8 Dimension (approx.): Main unit: 190 * 120mm / 7.48 * 4.72in Probe with Handle Length: 150mm / 5.91in Probe (only) Length: 48mm / 1.89in Cable (only) Length: 130mm / 5.12in Power Supply: 1 x 1.5V AA Alkaline battery (not included) Package Weight: 282g / 9.95ounces Package Size: 230 * 150 * 60mm / 9.06 * 5.91 * 2.36in Note: Probes are not recommended to be immersed in any liquid other than pool or spa water. Packing List: 1 * PH Tester Meter with Probe 1 * Sand Paper 1 * User Manual