HW-group WLD2 Water Detector

Water leaks and unnoticed water ingress are among the greatest risks for data centers, server rooms, and other sensitive infrastructures. Even a few drops of liquid can cause short circuits, IT failures, or enormous consequential costs. The HW-group WLD2 Water Detector is a professional solution specifically designed for protecting critical environments. With its area-based 2D liquid detection, it reliably monitors the entire length of a connected sensor cable, actively protecting against water damage.

Compared to conventional spot sensors, which only monitor a small area, the WLD2 provides comprehensive area monitoring. Conductive liquids such as water, condensate, or coolants (e.g., ethylene glycol) are detected along the entire cable length. Even the smallest amounts trigger an alarm. At the same time, the device detects defective cables or interruptions – ensuring maximum operational reliability at all times.

Especially effective is the ability to configure up to four independent zones. Each zone can be individually equipped with up to 85 meters of sensor cable and extended via prolong cables up to 185 meters. This zone model enables precise localization of water leaks and targeted alerting of responsible personnel. As a result, the WLD2 becomes a versatile instrument for water leakage protection and preventive building security.

Thanks to advanced network capability, the water detector can easily connect via LAN or Wi-Fi. With PoE support or external 5V power supply, installation is straightforward even in complex IT environments. Intelligent alarm functions via e-mail, SNMP trap, SMS (via gateway), or cloud platforms ensure that irregularities are immediately detected and reported.

Technical Features of the WLD2 Water Detector

• 2D area monitoring: liquid detection along the entire cable length
• Four zones: individually configurable, up to 185 m cable length per zone
• Network capability: LAN and Wi-Fi connectivity (IEEE 802.11 b/g/n) with external antenna
• Power over Ethernet: PoE support or external 5V adapter
• Alarm channels: e-mail, SNMP, SMS/call (via gateway), Box-2-Box mode
• Compact design: 65 × 80 × 30 mm, space-saving and discreet
• Operating environment: –10 °C to +60 °C, certified according to CE, FCC, and EMC standards

Advantages for Water Leakage Protection

• Early warning system with reliable detection of the smallest amounts of water
• Exact localization through four independent zones
• Easily extendable with prolong cables up to 185 m
• Water sensor for data centers, industrial plants, museums, archives, and building infrastructure
• Full integration into HW-group monitoring platforms such as SensDesk Cloud
• Reusable sensor cables after cleaning and drying

Application Areas of the HW-group WLD2

• Server rooms & data centers: prevents outages caused by leaks in air conditioning systems or raised floors.
• Industrial facilities: protection against coolant losses and defective pipelines.
• Museums & archives: protection of sensitive exhibits and documents from water damage.
• Building technology & hotels: protection of basements, technical rooms, and water-bearing systems.
• Telecommunications: prevents damage to critical BTS stations caused by moisture.

Reusable Sensor Cables Type A

The robust Type A sensor cables are a critical component of the WLD2 system. They are available in lengths from 2 m to 85 m and can be extended up to 185 m with prolong cables. The fabric covering quickly absorbs liquid. After use, the cables can be easily cleaned, dried, and reused – a solution that is both sustainable and cost-efficient.

System Integration and Alarm Notification

The WLD2 can be fully integrated into monitoring environments via LAN or Wi-Fi. In combination with the SensDesk Cloud portal, users benefit from centralized monitoring, alarm management, graphical visualizations, and reporting. Supported features include:

• Real-time e-mail alerts
• SNMP traps for network monitoring systems
• SMS and phone alarms with external gateways
• Box-2-Box mode for direct control of relays from other HW-group devices

The open architecture with SNMP, HTTPS, and XML ensures smooth integration into existing IT and building monitoring systems.

Versions of the WLD2

• Set 1: Base unit with 4 zones (max. 185 m per zone), LAN/Wi-Fi, PoE support, HTTPS, TLS SMTP. Use via HWg-cloud.com or SensDesk portal.
• Set 2: Complete set including WLD A connection cable (2 m) and power adapter, ready for operation with ETH/Wi-Fi connectivity.

What distinguishes the WLD2 from conventional spot sensors?

While spot sensors only measure liquids at a single point, the WLD2 monitors the entire cable length of a zone (up to 185 m).

Can the sensor cables be reused?

Yes, Type A sensor cables are reusable. After cleaning and drying, they can be used again.

How is alarm notification handled in case of an incident?

The WLD2 triggers alarms via e-mail, SNMP trap, SMS (through gateways), and the SensDesk Cloud. Additionally, relays on other HW-group devices can be activated.