9 in 1 Water Test Strips Water Quality Tester Water Hardness Test Strips

2、 Water tester to check water for 9 substances: Lead, iron, copper, nitrate, nitrite, water hardness, fluoride, total alkalinity, pH. 3、 Water quickly tester, provides results in a matter of seconds. 4、 High-quality water tester with precise colour coordination and high sensitivity. 5、 There are 50pcs of water test strips in the package. Test Methods: Important matters: 1 * Water Test Strips

• Suitable for drinking water, aquarium, fish tank, swimming pool, SPA, industrial water, pond, hot spring, etc.
• Immerse the reaction area of ​​the test strip in the test solution for 1-2 seconds, remove the test strip, and shake off excess water.
• After 1 minute, compare the reaction area of ​​the test strip with the color of the color card to determine the test value of the test solution.
• Colorimetric time should be controlled at about 60s. If the time is too long or too short, it will affect the reading.
• Do not touch the test area of ​​the reagent strip.
• After removing the test strip, keep the rest of the test strip sealed and store away from light.
• Try to keep the liquid to be measured colorless or light-colored.
• Keep away from sunlight and moisture. Replace the cover in time after removing the slats.
• Do not remove the desiccant.
• Use within the validity period.