Ajax WaterStop DN15 1/2" Smart Water Shut-off Valve ITM001012

Introduction to Ajax WaterStop DN15 and its key features

Ajax WaterStop DN15 1/2" Smart Water Shut-off Valve (ITM001012)is a wireless smart shut-off solution designed to prevent flooding and give homeowners, landlords and small businesses reliable remote control over their water supply. The unit combines a high-quality RuB (Bonomi) brass ball valve with an electric actuator and Ajaxs encrypted Jeweller radio module. Integrated with an Ajax Hub and LeaksProtect (or compatible third-party leak sensors), WaterStop can automatically close the water supply when a leak is detected, follow scheduled routines or be operated remotely via the Ajax mobile app.

Key features at a glance:

• Remote control via the Ajax app or manual on-device button with support for scheduled and automation scenarios.
• Automatic shut-off on leak detection when paired with LeaksProtect or an integration module.
• Quick valve closure: closes in approximately 5 6s seconds for fast response to incidents.
• Robust RuB brass ball valve (Bonomi) suitable for hot and cold water systems.
• Battery powered (4CR123A pre-installed) with optional external 7.5 614 V DC supply for mains-powered installations.
• Encrypted Jeweller radio protocol providing long range and in-app signal testing.

Detailed specifications and benefits

The WaterStop DN15 is engineered with both reliability and real-world installation needs in mind. Below are the most relevant specifications and the benefits they deliver:

• Valve size:DN15 (1/2") — other sizes (DN20, DN25) are available in the family.
• Valve type:RuB brass ball valve (Bonomi) for proven durability in residential and commercial plumbing.
• Power:4CR123A batteries pre-installed; optional external 7.5 614 V DC supply recommended at
  .8 A or higher for mains-like reliability.
• Battery life:Up to approximately 3 years depending on usage patterns and radio activity.
• Close time:Approximately 5 67 seconds, giving rapid isolation of the water line.
• Radio protocol:Jeweller (encrypted) for long-range, secure communication with an Ajax Hub.
• Operating environment:0 660 C and up to 95% relative humidity; intended for indoor plumbing installations.
• Dimensions & weight (DN15):104.5 104.5 139.9 70 mm
• Weight (DN15):approximately 869 g.
• Close mechanism:Electric actuator driving the ball valve for consistent, fast closure.
• Signal test:In-app signal-level test to confirm reliable radio communication with the Ajax Hub.

Benefits derived from these specifications:

• Durability:The RuB (Bonomi) brass ball valve is a higher-quality component than many plastic alternatives, offering long-term resistance to wear, temperature and water chemistry variations.
• Fast response:5 67 second closing time dramatically reduces the volume of water released during an incident compared with manual responses.
• Flexible power options:Battery operation makes the unit simple to install in locations without easy mains access; optional external power allows always-on setups where preferred.
• Security-grade communications:Encrypted Jeweller protocol provides secure, long-range connection to an Ajax Hub, ideal for integration into a broader security or automation system.

Use cases and scenarios where WaterStop excels

Ajax WaterStop is designed for scenarios where fast, reliable isolation of water mains can prevent property damage, reduce repair costs and provide peace of mind. Typical use cases include:

• Residential homes:Protect kitchens, bathrooms, basements and holiday properties against leaks from failing appliances, pipes or fittings. Automated shutdown prevents hours of uncontrolled flooding when occupants are away.
• Landlords and rental properties:Minimize tenant-caused water damage and reduce downtime between tenancies by automatically isolating problematic water lines or when leak sensors trigger.
• Small commercial premises:Cafs, small offices and retail units where water damage can impact business continuity; integrated alarms and shut-off help protect stock and infrastructure.
• Installer-friendly protection zones:Plumbers and security installers can add WaterStop to an Ajax security ecosystem for centralized, managed flood prevention across multiple outlets.
• Remote and seasonal properties:Vacation homes and properties left unoccupied for long periods benefit from battery operation and automatic leak response to prevent catastrophic seasonal damage.

Comparison with similar products on the market

Smart shut-off valves and water-management systems vary widely in approach. Ajax WaterStop stands out in several ways when compared to common alternatives:

Many consumer-level water shut-off devices rely on plastic valves or lower-grade materials. WaterStops RuB brass ball valve (Bonomi) provides greater longevity and heat resistance, making it a strong choice for both hot and cold water installations.

Some products are standalone devices that require their own app or cloud service. WaterStop is built to be part of the Ajax security and automation ecosystem, which enables coordinated responses (alarm, camera activation, notification and shut-off) and is attractive to users already using Ajax devices or installers deploying a comprehensive security solution.

Battery-powered options are common, but the combination of long-life CR123A cells plus an optional external power input allows installers to decide between ease of installation and permanent powered setups. Competing brands may offer only mains-powered models or batteries with shorter lifespans.

The roughly 5 67 second closure time is competitive; combined with encrypted long-range radio and in-app signal testing, WaterStop aims to reduce false triggers and maintain reliable operation, which matters in distributed or larger properties.

Notable competitors in the wider market include systems like Flo by Moen, Phyn, LeakSmart and other smart valve kits. Those systems offer varied strengths (advanced diagnostics, flow analysis, or plumbing contractor partnerships). WaterStops strengths are its brass valve hardware, Ajax security integration and installer-oriented accessories such as the anti-sabotage bracket for exposed locations.

Customer impressions and installer feedback

While individual experiences will vary, representative feedback from early adopters and installers highlights common themes:

• "Easy to integrate into existing Ajax systems — once paired, it works reliably and the in-app signal test gave confidence on placement." (Installer sample feedback)"
• "The brass valve feels solid compared to cheaper plastic units, and the quick close time gave me confidence it would limit damage if a leak was detected." (Homeowner sample feedback)
• "Battery life is good in practice; for critical properties Ive paired the external power to avoid maintenance visits." (Property manager sample feedback)

These illustrative comments reflect the common priorities users report: reliability of the valve, ease of integration with security systems and flexibility in power options. Prospective buyers should consult real-world reviews from installers in their market to confirm performance under local conditions.

Conclusion: why choose Ajax WaterStop DN15

Ajax WaterStop DN15 (ITM001012) is a strong choice for anyone looking to add dependable, automated water shut-off to a smart security or automation system. It combines a high-quality RuB brass ball valve, rapid 5 67 second shut-off, flexible power options and secure Ajax integration. These attributes make it particularly well-suited to homeowners, landlords and small commercial operators who need fast response to leaks, reduced downtime and minimal ongoing maintenance.

Backed by a 24-month warranty, packaged with spare parts and mounting options (including an anti-sabotage bracket), and supplied as part of a broader Ajax ecosystem, WaterStop offers a practical blend of hardware quality and smart control. With a suggested retail price of $299 (supplier ITM001012) and stock availability for installers, it represents a practical investment in flood prevention and water management for indoor installations.

Before installation, review local regulations, refer to the official manual and consider engaging a qualified plumber for fittings where required. For properties already using Ajax security devices or for those seeking an installer-friendly, reliable shut-off valve with strong hardware, WaterStop DN15 is a compelling option.