7 in 1 Water Quality Test Strip Professional Swimming Pool Test Paper Useful Aquarium Test Strips

Label:Yes Brand new and high quality Test Strips size: 81*5mm(3.19*0.20in) Color: As the picture shows Name: 7 in 1 Water Quality Test Strip Material: Test paper Package: 100pcs/box * Aquarium Test Strips

Instructions: 1. Immerse the test area of the test paper in water for 2 seconds. 2. Take out the test paper and place it horizontally for 60 seconds. 3. Compare the test paper with the colorimetric table of the bottle body, and complete the reading within 30 seconds to obtain accurate results.

Matters needing attention: 1. Please cover the bottle immediately after taking out the test paper. 2. Don't put your wet fingers deep into the bottle. 3. Do not touch or stain the test area of the test paper. 4. Store in cool, dry and dark conditions. 5. Please use it up within the validity period.

Notes: 1. Due to the light and monitors effect, colors may have lightly difference. 2. Please allow slightly size errors due to manual measurement. Thank you for your understand!