
Water Leak Detection Systems
Distance to Leak Sensor – Type DLD100
Advanced Leak Detection with Precise Location Monitoring
The Distance to Leak Sensor has been purpose-built to provide fast, accurate water leak detection with precise distance-to-leak reporting (+/- 1m accuracy). This makes it an essential tool for protecting critical infrastructure in buildings, data centres, and HVAC systems. Designed to integrate seamlessly with Building Management Systems (BMS), PLCs, or standalone alarm units, this intelligent device uses a detection cable and alpha-numeric display to pinpoint the exact location of a leak in metres—even in hidden or difficult-to-access areas like ceiling voids or raised floors.
With built-in diagnostics for cable faults, contamination, and multiple leak detection, it ensures system reliability and simplifies maintenance. Its versatile power supply range, easy installation, and automatic reset functions make it a practical, dependable solution for preventing costly water damage and downtime.
Reliable Water Leak Detection — When Every Second Counts
Our Water Leak Alarm is a professional-grade solution designed to provide early detection of leaks, helping you prevent costly water damage. Whether it’s under sinks, near water heaters, or behind appliances, this device alerts you the moment water is detected.
How the Distance to Leak Sensor Operates
The Distance to Leak Sensor works by continuously monitoring a specially designed detection cable for the presence of water or faults such as damage or contamination. When water comes into contact with the cable, the sensor measures the distance from the control unit to the leak location and displays it in metres on its alpha-numeric screen—for example, “Leak at 39Mts.” This enables quick identification and response, even when the cable is installed out of sight.
If the cable is disconnected, damaged, or contaminated during startup, the system will automatically detect the issue and display fault messages like “Sensor Cable Fault” or “Cable Length Error.” Once the issue is resolved or the leak is removed, the sensor resets itself automatically, ensuring minimal downtime and ongoing protection.
Key Benefits and Seamless BMS Integration
The Distance to Leak Sensor offers a range of advantages that make it an essential component in any water detection and protection strategy. One of its key benefits is its ability to seamlessly integrate with existing Building Management Systems (BMS), control systems, or PLCs via volt-free relay contacts, allowing for real-time monitoring and automated response without the need for additional infrastructure.
The sensor not only alerts users to the presence of water but also displays the precise distance to the leak. This enables rapid identification and response—even in concealed areas like raised floors or ceiling voids. Its automatic fault detection, self-resetting features, and compatibility with standard 12–24VDC/AC power sources ensure reliable operation with minimal maintenance, helping prevent costly water damage and operational disruptions.
📏 Extended Distance to Leak Sensor — Flexible, Scalable Coverage
Designed for maximum installation flexibility, the Distance to Leak Sensor features dual RJ45 connectors and low-voltage operation, making it easy to position detection exactly where it’s needed—even when the control unit and sensor are located far apart.
Unlike traditional alarms with fixed, short tethered sensors, this system supports customizable cable lengths and standard RJ45 connectivity, allowing detection cables to be installed in tight, remote, or hard-to-access areas. It can monitor runs from as short as 20 metres up to 100 metres per zone, and for larger coverage requirements, up to 10 sensors can be linked in a daisy-chain configuration.
This scalable setup is ideal for large or complex environments, such as plant rooms with multiple chilled and hot water pipes suspended from ceilings, ensuring comprehensive protection from water leaks across wide areas.
Summary of features
- Small footprint: 125 mmx 78mm x 35mm housing
- Input Power via RJ45 connectors: 12 to 24VDC/AC
- Large alpha numeric display with backlight to display distance to leak
- Accuracy +/- 1m.
- Choose detection cable length between 20m – 100m.
- Up to 10x DLD100 sensors can be connected together.
- The detection cable is monitored for damage or dis-connection
- Connect to your BMS with Volt free (dry) contacts
Optional features
- Alarm output to a flashing Beacon and/or Mutable Sounder.
- Optional SMS text messaging unit.
- Mutable onboard audible warning device
DLD100 information sheet
DLD100 User-Manual
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