Features: 【WHAT YOU WILL GET】You will receive 100pcs/2bottles, pool test strip, enough for use. Use it to quickly test water quality and prevent damage to human skin. 【6-IN-1 MULTIFUNCTION】The 6-in-1 multi-function test strip is suitable for testing various water quality effects, including total chlorine, residual chlorine/bromine, PH, total alkali, hardness and cyanuric acid. 【WIDE APPLICATION】Test strip is widly used to test drinking water, aquarium, swimming pool, aquarium, spa, industrial water, pond, hot spring water, fresh water is also applicable. 【EASY TO USE】Easy and quick to operate. Take out a piece of test paper, immerse the test paper in the liquid to be tested for 2 seconds, take it out, and shake off the excess liquid from the test paper. Stand for 30-60 seconds and compare with the color scale. 【SEALED STORAGE】The bottle is packed in tinfoil with good airtightness to ensure the accuracy of the test strip. Quickly close the bottle cap tightly after removing the test strip. Specifications: Color: as shown Material: PET Accuracy: 96% Certificate: CE, ISO Test time: 30s Test strip length: about 7.1cm/2.80inch Package Includes: 100pcs/2bottles x Pool test strip Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement. 3. Do not touch the reaction end of the test paper when taking it out, so as not to contaminate the test paper and affect the test results. 4. After taking out the required number of test papers, seal the remaining test papers and keep them away from light. 5. The liquid to be tested should be kept colorless or light-colored as much as possible, and the liquid that is too dark in color can be dehydrated by adsorption with activated carbon before testing. If the liquid to be tested is relatively turbid, let it stand for a period of time, and after precipitation, take the clear part for testing. Storage conditions and shelf life: 1. Storage Conditions: Store in a dry place at 2°C~30°C and avoid light (2°C~8°C). 2. Product shelf life: 2 ℃ ~ 30 ℃ dry place to store away from light, the shelf life is 12 months. 3. Shelf life after opening the bottle: After opening, the cap should be sealed and stored in a dry place at 2°C to 30°C away from light. Please use it up as soon as possible. Sample request: 1. Take 5-10ml of the sample, and take the supernatant for testing after standing still. 2. The test is carried out at room temperature around 25°C.