These cassettes and their patented chemistry pads are essential for correct analysis of your pool’s water, giving you the information you need to maintain a safe and clean environment to swim in.

For use exclusively in SENSE S2 devices
Smart cassette with ultra accurate chemistry pads and easy snap-in replacement
1 x C5 Cassette* - Measures pH and FC daily, plus CYA, Hardness, and total Alkalinity, lasts ~ 1 month (29 days)
2 x C2 Cassettes - Measures pH and FC daily, each lasts ~ 2 month (58 days) each. Additional daily measurements will reduce Cassette life.

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