HW-group Poseidon2 4002

Water ingress is one of the greatest risks in server rooms, data centers, and industrial environments. Even minor leaks can cause plant shutdowns, data loss, or costly repairs. The HW-group Poseidon2 4002 is a versatile monitoring solution that reliably supports companies in water leakage detection and protection against water ingress. With the ability to process up to 40 sensors in parallel, this powerful monitoring system sets new benchmarks for IT and building management.

Thanks to modern interfaces and protocols such as SNMPv3, Modbus/TCP, MQTT, and HTTPS, the Poseidon2 4002 is not just a monitoring device but also an IoT-capable platform. This makes it ideal for integration into SCADA systems, cloud environments, and IoT monitoring solutions. In combination with the SensDesk portal or HWg-Cloud, users have central, mobile access to alarms and sensor data – in real time via smartphone or web interface.

The Poseidon2 4002 is optimally equipped for protection against water leakage. Its 12 digital dry contact inputs allow direct connection of water detectors or WLD sensor cables. As soon as liquid is detected, an immediate alarm is triggered via e-mail, SNMP trap, or optionally SMS through an external SMS gateway. This enables operators to detect leaks early and take countermeasures before outages occur.

The Poseidon2 4002 is available in Base, TSet, and PRO versions, making it suitable for different application environments. The TSet version includes all necessary accessories for immediate use, while the PRO version provides enhanced integration options for specialized applications.

Technical Features of Poseidon2 4002

• Supports up to 40 sensors (16 via 1-Wire/UNI + 24 via RS-485)
• 12 digital inputs for dry contacts (e.g., smoke, door, or water leak detectors)
• 4 digital NO/NC relay outputs (1 A), ideal for HVAC, pumps, or fans
• 8 virtual digital outputs (VDO) for M2M control with Poseidon2 or Damocles2 devices
• Internal data logger for >250,000 readings, export via HWg-PDMS to Excel
• Network protocols: SNMPv3, Modbus/TCP, MQTT, HTTPS, IPv6, XML
• Web interface for configuration, compatible with over 50 SNMP & SCADA applications
• Rugged metal housing, mountable in 19" racks (1U), wall, or DIN rail
• Operating temperature range: -30 °C to +85 °C, CE compliant

Protection Against Water Leakage and Ingress

The Poseidon2 4002 proves especially effective in environments where immediate action is critical. In combination with water leak sensors or WLD detection cables, it identifies even minimal liquid ingress. Through relay outputs, external devices such as pumps, sirens, or backup generators can be automatically triggered. This makes Poseidon2 not just a monitoring system but also a central control unit for emergency management.

Typical Applications

• Data centers & server rooms: monitoring temperature, humidity, water leaks, and door contacts
• Industrial plants: supervision of machines and facilities for fluid leaks
• Warehouses & cold chains: protection of food and pharmaceutical storage against moisture damage
• Smart buildings: integration into building management systems for automated water protection
• Telecom: ensuring stable environmental conditions in base stations

Variants of Poseidon2 4002

• Poseidon2 4002 (Base unit): ideal for customized configurations
• Poseidon2 4002 TSet: includes power adapter, sensors, door contact, mounting kit – ready to deploy
• Poseidon2 4002 PRO: advanced version with extended integration support for IT and industrial applications

Integration & Software

With HWg-PDMS, users can generate reports and perform analyses – e.g., for HACCP compliance in the food industry. HWg-Trigger enables advanced alarm forwarding, from SMS warnings to automated system shutdowns. Developers benefit from the HWg-SDK for C++, PHP, Java, or C#, which facilitates easy integration with third-party solutions (e.g., SCADA or IoT platforms).

Security & Installation

Poseidon2 4002 supports SNMPv3 and HTTPS for secure data transmission. PoE and 9–30 V DC ensure flexible power options. With simple 19" rack or cabinet installation, the device is designed to be robust and reliable for continuous operation in demanding environments.

Can the Poseidon2 4002 detect water leaks?

Yes, by connecting WLD sensors or water detection cables, the Poseidon2 detects even small amounts of liquid and immediately issues an alarm.

What distinguishes the Poseidon2 4002 from smaller Poseidon2 models?

The Poseidon2 4002 supports up to 40 sensors and provides 12 digital inputs as well as 4 relay outputs – making it ideal for large IT and industrial installations.

How does alarm notification work in case of water ingress?

Alarms are sent in real time via e-mail, SNMP trap, or optionally via SMS/voice through a gateway. In addition, external actuators can be automatically controlled via relays.