These Total Alkalinity Test Strips 486641 are used in the Sensafe Exact Micro 7 Photometer and in other water testing micro meters.

Spa and Swimming pool owners should test pool water for total alkalinity regularly to ensure their total alkalinity is in the proper range. Low alkalinity levels can stain the walls and floors of pools, corrode metals, turn your water green and cause your eyes to burn. Likewise, if your total alkalinity is too high, your chlorine will be less effective as a disinfectant and you'll have to add acid often to adjust the pH level.

• Contains 100 calcium pool test strips
• Detection Range: 20 - 180 ppm
• Chemistry: Alizarin Red S + Citrate 

A full refill kit for the Exact Micro 7 meter would include these eXact Strip Micro test strips (each sold separately):

• pH Test Strips 486639
• Copper Test Strips 486632
• Calcium Test Strips 486629
• Total Alkalinity Test Strips 486641
• Free Chlorine Test Strips 486637 (DPD-1)
• Total Chlorine Test Strips 486670 (DPD-4*)

*The DPD-3 Total Chlorine strips that came with the eXact Micro kit require the use of a DPD-1 strip to test for free chlorine, whereas the DPD-4 strips do not.