HW-group Water Protection Systems for IT Infrastructures

In modern data centers and server rooms, water leak detection is a vital safety measure. Even small leaks can cause downtime, data loss, or hardware failures. HW group provides a versatile portfolio including the WLD2 detector, NB-WLD IoT devices, Spot Detectors, and water leak sensing cables. Together, they form a scalable monitoring ecosystem for IT protection.

1. Goal of Leak Detection

The key goal is early detection — triggering alarms at the first sign of water to protect servers, switches, and storage systems. HW group WLD systems combine sensor technology with monitoring platforms, ensuring real-time alerts and integration into remote monitoring environments for rapid mitigation.

2. Core Components

• Sensing cables: detect even small amounts of conductive liquids
• Spot detectors: inexpensive, targeted single-point detection
• WLD2 and NB-WLD: multi-input detectors with network or NB-IoT communication
• Interfaces: LAN, PoE, RJ11, WiFi, NB-IoT
• Alerts: email, SNMP, SMS, relay contacts, or via SensDesk
• Data management with SensDesk portal

3. Types of Detection

3.1 Spot Detection

HW group Spot Detectors monitor specific points such as drip trays and UPS areas. They are cost-efficient but limited in coverage, making them part of a multi-layer strategy.

3.2 Cable Detection

WLD sensing cables detect water along their entire length, including raised floors and pipelines. Reusable after drying, they are cost-effective and ideal for large-scale monitoring.

4. Key Devices

WLD2 Detector

IP-enabled, supports PoE, multiple inputs, and up to 85 m sensing cables. Alarming via SNMP, email, or SMS makes it suited for professional facilities.

NB-WLD

NB-IoT-based unit for use in remote or LAN-less environments. Provides cellular leak detection and long battery operation.

WLD Relay

Offers relay outputs for controlling pumps or alarm systems and can be integrated into box-to-box scenarios.

Spot & 1W-UNI Sensors

Cost-efficient devices for localized detection, integrated into Poseidon2 for centralized monitoring.

5. Operational Workflow

1. Install spot detectors or sensing cables in high-risk areas
2. Connect via RJ11, LAN, or NB-IoT to WLD units
3. Monitor status signals (OK, Water, Cable Fault)
4. Generate alerts via SNMP, email, SMS, or SensDesk integration
5. Analyze trends and reports in SensDesk portal

6. Advantages

• Real-time detection of smallest water volumes
• Reusable sensing cable for lower costs
• Fault detection for broken cables
• Scalable zones for precise localization
• Compatible with Nagios, PRTG, Zabbix
• Cloud and on-premises support via SensDesk

7. Use Cases

• WLD2 monitoring four zones in data centers
• Spot detector in AC drip tray alerts Nagios
• NB-WLD protects remote sites without LAN
• Cables around cooling lines identify condensation early

8. Maintenance & Planning

Best practices include regular cable testing, checking alarm paths, updating firmware, and simulating incidents. Structured installation (cables under raised floors, spot sensors at drip points) ensures full coverage.

HW group delivers comprehensive solutions for IT water leak detection — from WLD2 detectors and sensing cables to NB-IoT devices and Spot Sensors. Combined with SensDesk, these systems create a remote monitoring ecosystem that protects critical infrastructures from costly water damage and ensures operational continuity.