1Applicable: Electrical tester for measuring pH and chlorine (Cl2) levels in water for routine monitoring of pH and chlorine levels. 2High Accuracy: Key tool for quickly and accurately reading pH and chlorine readings. Ideal for testing swimming pools, spas and different water sources. 3Recommended Level: Recommended chlorine levels for pools and spas: 1.2 to 1.7 PPM and 7.2 to 7.8 pH levels for pools and spas. 4Practical: Perfect for keeping your pool or spa within safe chlorine and PH limits, no more guesswork. 5Convenient to Use: Lightweight and easy to carry, making your pool/spring safe, comfortable and corrosion free. Item Type: Water Quality Tester Material: ABS+Metal Size: Host Size: Approx. 180x125mm / 7.1x4.9in Length: Approx. 150mm/5.9in (Probe with Handle) Probe Length: Approx. 45mm/1.8in Cable Length: Approx.120mm/4.7in Power Supply: 1 x AA Battery (Not Included) Model: PC102 The recommended chlorine levels for swimming pools and spas are 1.2 to 1.7 PPM and pH 7.2 to 7.8