Description: Material: PET Test items: hardness, total alkali, cyanuric acid, total chlorine, residual chlorine, bromine, Color: White Feature: 1. Easy to operate: No professional equipment is required, the results can be read quickly after soaking, suitable for on-site testing. 2. Fast and efficient: Display detection results in a short period of time to improve detection efficiency. 3. Multi parameter detection: It can simultaneously detect multiple water quality indicators such as value, residual chlorine, hardness, etc. 4. Portable and practical: Small in size, easy to carry, suitable for outdoor, home, and laboratory environments. 5. Widely applicable: It can be used for detecting drinking water, swimming pool water, industrial water, aquaculture water and other scenarios. Attention: 1.Due to manual measurement, there may be a 1-3mm error in product dimensions. 2.The color of the product may have errors due to objective reasons, and the actual product is the main focus. The product includes: 50/100 * water quality testing strips