The eXact® Strip Micro Calcium Hardness incorporates the patented eXact® reagent delivery system created by Industrial Test Systems, Inc. which is ideal for technical and non-technical users. By dipping the eXact® strip into a photometer cell, the exact amount of reagent is released into the water causing a change in color or turbidity. The change is measured by an eXact® photometer giving the user fast and accurate results.
Bottle of 50 Tests
- Made in the USA
- Store in a cool, dry place (below 90 degrees F) away from direct sunlight.
- Read the directions before beginning any test.
- Keep Out Of Reach Of Children
- Simple 20 second test