The HW group Temp‑1Wire Rack 19 is a purpose‑built temperature sensor for precise, continuous monitoring in IT racks, server rooms, and data centers. With a measurement range from –10 °C to +80 °C, this digital sensor delivers accurate real‑time data for climate control and helps prevent overheating and technical failures.

Designed for direct installation in 19″ racks, the sensor meets the specific requirements of modern server environments. Whether deployed in data centers, technical rooms, or industrial IT infrastructures, the Temp‑1Wire Rack 19 ensures reliable temperature monitoring at critical hardware points.

Compatibility and Integration

The temperature sensor is fully compatible with all HW group monitoring systems such as Poseidon2, Ares, and HWg‑STE. Integration is via the proven 1‑Wire protocol with RJ11 connection. A 3‑meter connection cable is included, enabling straightforward setup.

Thanks to its daisy‑chain capability, multiple Temp‑1Wire Rack 19 sensors can be connected in series to collect detailed climate data across multiple server racks using minimal cabling. This makes the sensor ideal for data centers with complex installations that require high precision and scalability.

Flexible Installation

The Temp‑1Wire Rack 19 can be mounted quickly and flexibly, either at the front or rear of 19″ racks, or alternatively to walls. This versatility enables use in various IT and technical rooms where constant temperature monitoring is essential. An optional calibration certificate is available to meet the highest industrial accuracy requirements.

Technical Specifications of the Temp‑1Wire Rack 19

• Measurement range: –10 °C to +80 °C
• Digital 1‑Wire temperature sensor (RJ11 connector)
• Designed for 19" rack installations
• Daisy‑chain technology for serial connection of multiple sensors
• Two RJ11 ports (input & output)
• Includes 3 m connection cable
• Optional calibration for highest precision
• Rugged design for continuous operation in data center environments

Advantages of the HW group Temp‑1Wire Rack 19

• Specifically designed for IT and data center environments
• Accurate, stable temperature readings in real time
• Daisy‑chain support for efficient cable management
• Seamless integration with Poseidon2, Ares, and HWg‑STE systems
• Robust construction for 24/7 operation
• Optional calibration for audit‑certified accuracy

Typical Applications

• Server room and rack monitoring – protecting critical IT hardware from overheating
• Data center monitoring – detailed climate control across multiple racks
• Technical rooms – monitoring sensitive infrastructure components
• Building technology – integration into centralized monitoring platforms
• Research and laboratories – reliable readings in temperature‑critical environments

Integration with HW group Monitoring Systems

When paired with HW group devices such as Poseidon2 or Ares, the sensor can be integrated directly into existing network monitoring systems. Using web interfaces and protocols such as SNMP, XML, or Modbus/TCP, readings can be seamlessly incorporated into higher‑level systems. Alarm notifications via email, SMS, or SNMP trap inform administrators instantly when thresholds are exceeded, allowing rapid response.

Integration with the SensDesk.com IoT portal enables centralized, cloud‑based management. All temperature data can be viewed, logged, and exported for audits across multiple sites, making monitoring possible both locally and globally.

Practical Example

In a modern data center, several HW group Temp‑1Wire Rack 19 sensors are installed along server racks. Connected in series via daisy‑chain to a Poseidon2 system, the sensors trigger an alarm when a sudden temperature rise from a failed fan is detected. An SMS alert is sent to the administrator, enabling immediate corrective action and preventing downtime.

The HW group Temp‑1Wire Rack 19 is a high‑precision, robust, and scalable temperature sensor designed for the needs of modern IT infrastructures. Its simple installation, daisy‑chain capability, and full integration into HW group systems make it the optimal choice for professional data centers, server rooms, and technical facilities. For IT administrators and facility managers, it is a dependable tool for continuous environmental control and operational reliability.