Practical safety: This digital meter lets you quickly and accurately read pH and chlorine levels for pools and spas, helping keep water safe and comfortable. It covers pH 0–14 with 0.01 resolution and chlorine in ppm. Safe ranges for reference include chlorine around 1.2–1.7 ppm and pH around 7.2–7.8. Accuracy: precision is achieved with a 0.01 resolution and ±0.05 accuracy. The device is factory calibrated and ready to use without color charts or test strips. Wide application: Suitable for swimming pools, spas, home brewing, laboratory testing, aquarium maintenance, and other water samples. It measures both pH and chlorine (Cl2) to support regular water monitoring. Portable and convenient: Handheld and pocket friendly for easy transport. Built in automatic temperature compensation ATC ensures accurate pH readings without temperature adjustments, from 0 to 80 C (32 to 176 F). Use scenarios: Daily pool or spa upkeep to maintain comfort and protect surfaces and skin Home brewing water checks to achieve proper pH balance and chlorine control Aquarium upkeep or water testing in labs where quick dual readings are needed Key attributes: compact size, dual state of measurement (pH and chlorine), factory calibration, and ATC for temperature independent results.