Meet the CITW-209-01-01-01 Water Detect Sensor NuWhirl — a patent-pending, all-in-one solution from ITW designed for spa and whirlpool systems. This compact module blends precise water detection with intelligent temperature sensing to safeguard equipment, optimize operation, and simplify installation. NuWhirl stands out by delivering sensing that’s both reliable and unobtrusive, so your spa stays protected without complicating the look or plumbing of your tub.

Why NuWhirl stands out

• Capacitive water detection provides wear-free sensing of water presence, delivering reliable alerts and reducing false alarms in wet environments.
• Patented through-the-tub-wall temperature measurement lets you monitor water temperature without invasive probes or extra fittings, improving control accuracy for heaters and circulation pumps.
• Optional conductive water detection supports specialized functions such as blower dry cycles, offering targeted safety and operational flexibility when needed.
• Low installation cost with no fittings or holes to drill — ideal for streamlined retrofit projects or clean, new-install setups.
• Easy serviceability: when it’s time to replace, simply glue a new unit in place, minimizing downtime and simplifying maintenance.

How it works and why it matters

The NuWhirl sensor stays unobtrusive while delivering crucial insights for your spa or whirlpool. The capacitive detector senses water presence and proximity without contact-based wear, while the through-the-wall temperature measurement continuously tracks bath temperature. This combination enables smarter control logic that protects pumps and heaters from running dry, prevents overheating, and optimizes cycle timing for efficient operation. If your system uses blower dry cycles or other specialized routines, the optional conductive detection provides targeted data where it matters most.

Ideal use cases

• New spa or whirlpool installations where quick, clean sensor integration is a priority.
• Retrofits in existing tubs where drilling new holes is impractical or undesirable.
• Facilities and service professionals seeking reliable water detection integrated with temperature monitoring to prevent leaks, inefficient cycles, or equipment damage.
• Systems employing blower dry cycles or specialized routines that benefit from additional conductive water detection.

Who benefits

• Technicians and installers working with hot tubs, spas, and whirlpool systems appreciate NuWhirl’s simplicity and reliability.
• Homeowners and facility managers gain peace of mind from proactive sensing, reduced maintenance downtime, and fewer configuration hassles during upgrades or repairs.

What sets NuWhirl apart from other sensors

• Integrated, patented features that combine water presence sensing with temperature monitoring in a single module — fewer components, fewer failure points.
• Through-the-tub-wall temperature measurement eliminates invasive probes, preserving tub aesthetics and reducing installation complexity.
• Optional conductive detection offers targeted data for specialized routines, adding a layer of safety and flexibility when needed.
• Designed to complement ITW’s Sequence Controls ecosystem for cohesive, reliable spa management.

NuWhirl is the smart, practical choice for anyone upgrading or installing spa and whirlpool systems who values precise water sensing, accurate temperature control, and straightforward serviceability — all in one compact module.