Sundance® SpaSense Water Testing Cartridge – For Sutro® Monitor (pH, Chlorine/Bromine)

Genuine Sundance® SpaSense replacement cartridge for use with the Sutro® Smart Monitor Measures pH, free chlorine, total chlorine, and bromine levels in your hot tub water Designed for Sundance® spas using chlorine or bromine-based sanitizers Provides lab-accurate digital water testing results via the Sutro® mobile app Each cartridge lasts approximately 90 days, depending on testing frequency and spa use Simple to replace—just unscrew the old cartridge from the monitor and insert the new one Helps ensure balanced water chemistry, reduced chemical waste, and a better soaking experience Ideal for users who want automated, hands-off water testing without manual strips or guesswork