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Additional Cassettes So You Don't Run Out
SENSE S2 Cassette Combo Pack
Includes 1 C5 and 2 C2 Cassettes
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$60
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SENSE S1 Cassette 3 Pack
For use with Sense S1

These cassettes and their patented chemistry pads are essential for correct 24/7 analysis of your pool’s water, giving you the information you need to maintain a safe and clean environment to swim in.

  • 3 x C1 Cassettes - Measures pH and FC daily, lasts ~ 2 months (58 days) each
  • 1 x test tube and mailer for sending in a water sample to WaterGuru for analysis
$60
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SENSE S2 Cassette Combo Pack
For use with Sense S2

These cassettes and their patented chemistry pads are essential for correct 24/7 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
$60
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