[5 IN 1 WATER TEST KIT] Test strips provide 16 key functions: pH, mercury, lead, iron, copper, total alkalinity, hardness, nitrite, nitrate, bromine, free chlorine, total chlorine, fluoride, chromium, carbonate, and cyanuric acid, helping you monitor water clarity and quality. [EASY OPERATION] The spa test kit includes a dropper and test tube to prevent contamination and enable convenient use for pools, ponds, aquariums, and industrial wastewater applications. [SCIENTIFIC WATER TEST STRIPS] Designed for accurate water quality analysis, these reliable test strips offer precise results without the need for laboratory testing. They save time with easy, on-site use. Strips expire 3 months after opening. Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 108 hours.