Photo 1 of Waterguru - Sense S2 Smart Pool Monitor - Chlorine & pH Meter - CYA & Alkalinity Tester Pool Water Tester - Spa & Hot Tub Monitor - Includes WaterGuru Sense S2 C5 Cassette, Float Ring & More

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Photo 1 of Waterguru - Sense S2 Smart Pool Monitor - Chlorine & pH Meter - CYA & Alkalinity Tester Pool Water Tester - Spa & Hot Tub Monitor - Includes WaterGuru Sense S2 C5 Cassette, Float Ring & MorePhoto 2 of Waterguru - Sense S2 Smart Pool Monitor - Chlorine & pH Meter - CYA & Alkalinity Tester Pool Water Tester - Spa & Hot Tub Monitor - Includes WaterGuru Sense S2 C5 Cassette, Float Ring & More