1. Scope: - Total chlorine: 0-10 - Free chlorine, acid-base value (pH): 0-10 - PH: 6.8-8.4 - Total alkalinity: 0-240 - Total hardness: 0-1000 - Cyanuric acid, melamine: 0-240 2. Fast detection, simple operation 3. Easy to use, suitable for the detection of drinking water, swimming pool water quality 4. Easy to understand the main six indicators of water quality 5. Lightweight plastic bottle outer packaging, tinfoil inner bag, waterproof and moisture-proof, easy to store and carry, to ensure long-term use 6. Quantity: 50pcs/bottle 7. Size: about 9.6 x 3.6cm
