Thermo-Hygrometer SPE

Precise Climate Monitoring with the Thermo-Hygrometer SPE from Wiesemann & Theis

In modern IT and industrial environments, precise monitoring of temperature and humidity is essential to ensure optimal operating conditions. The Thermo-Hygrometer SPE from Wiesemann & Theis is an advanced measuring device that captures temperature and humidity with high accuracy and integrates into a network via Single Pair Ethernet. With integration into the W&T Cloud, support for MQTT messages, and the ability to send push notifications to smartphones, it offers a flexible solution for climate monitoring in server rooms, offices, and industrial applications. This article highlights the technical features, application possibilities, and advantages of this innovative device that meets Industry 4.0 requirements and contributes to energy efficiency through Green IT optimization.

Precise Measurements with Single Pair Ethernet

The Thermo-Hygrometer SPE is equipped with a temperature sensor covering a measurement range of -40 °C to +85 °C, and a humidity sensor operating from 0 to 100 % relative humidity (RH) under environmental conditions of 0 to 95 % (non-condensing). The innovative Single Pair Ethernet (SPE) interface enables efficient and space-saving data transmission over a single wire pair, simplifying cabling and reducing costs in extensive networks. The device is equipped as standard with a 3-pin screw terminal for SPE connection, facilitating easy installation in various environments. These features make it ideal for precise temperature and humidity measurement in demanding scenarios such as server rooms or industrial facilities.

Intuitive Operation and Network Integration

The Thermo-Hygrometer SPE is extremely user-friendly thanks to its intuitive web interface. Users can access real-time temperature and humidity data as well as historical logs via a web browser without the need for additional software. The graphical visualization of measurement data helps identify trends and potential issues, improving the efficiency of climate monitoring. The Single Pair Ethernet technology enables reliable and energy-efficient network connectivity that integrates the device into modern IoT environments. Measurement values can be queried directly via HTTP or TCP sockets, offering added flexibility for developers and system integrators. Integration with the W&T Cloud allows worldwide access to measurement data, making remote monitoring easy to implement.

Flexible Alarm and Reporting Functions

The Thermo-Hygrometer SPE provides modern and flexible options for alerts and reports. When temperature or humidity values exceed or fall below predefined limits, MQTT messages can be sent to connected systems, or push notifications can be delivered to smartphones using services like ntfy.sh. These functions are particularly beneficial in critical environments such as server rooms, where immediate response to environmental changes is essential. The activation code included with the device allows easy registration in the W&T Cloud, enabling data storage and reporting through the platform. These features increase transparency and reliability in climate monitoring and support compliance with quality standards.

Seamless Integration into Industry 4.0 and IoT

The Thermo-Hygrometer SPE is fully equipped for Industry 4.0 applications. MQTT support allows for seamless integration into existing automation systems and IoT platforms. Developers can access real-time values via HTTP or TCP sockets, enabling custom solutions, such as integrating live data into other websites or applications. W&T Cloud integration offers a centralized platform for documentation and analysis of measurement data with global accessibility. These connectivity options make the SPE a future-ready solution for connected environments where efficiency and scalability are key.

Data Storage and Global Access

The Thermo-Hygrometer SPE includes a local, volatile data logger that stores temperature and humidity readings for up to two days. For long-term storage and analysis, data can be uploaded to the W&T Cloud, where it remains accessible worldwide. The logging interval is freely configurable (15 seconds to 1 hour), allowing adaptation to different requirements. Data can be exported in formats such as Excel files, making further processing easy. An internal battery-backed clock ensures accurate timestamps, which can be synchronized with a time server. These features enable dependable documentation and analysis of environmental conditions, particularly useful in server room monitoring.

Versatile Application Areas

The Thermo-Hygrometer SPE is designed for a wide range of applications. In server rooms and network cabinets, it monitors temperature and humidity to prevent overheating or moisture-related hardware damage and to extend equipment lifespan. Push notifications keep IT administrators informed of critical environmental changes in real time, enhancing operational safety. In office environments, it supports air-conditioning optimization, helping to improve indoor comfort and reduce energy costs. In industrial settings, it can be used to control climate-sensitive processes. In the context of Green IT, the Thermo-Hygrometer SPE helps increase air-conditioning efficiency in data centers by delivering accurate data for cooling optimization. Thanks to Single Pair Ethernet technology, it is especially suited for modern space-saving network installations.

Compliance and Reliability

The Thermo-Hygrometer SPE is designed in accordance with standards for use in office and industrial environments, offering high immunity to interference per EN 61000-6-2 and low emissions per EN 55032:2015 + A1 Class B, EN 61000-3-2, and EN 61000-3-3. These properties ensure stable and interference-free operation, even in demanding environments. The device is built for continuous operation and comes with a 5-year warranty. Its rugged design and 3-pin screw terminal for the SPE connection ensure easy installation and make it ideal for industrial integration. The battery-buffered internal clock supports highly accurate time stamping, which can be optimized via NTP synchronization.

A Future-Proof Tool for Climate Monitoring

The Thermo-Hygrometer SPE from Wiesemann & Theis is an innovative solution for precise temperature and humidity monitoring in connected environments. With its Single Pair Ethernet integration, volatile data logger, and W&T Cloud connectivity, it provides a flexible and reliable solution for climate monitoring in server rooms, office spaces, and industrial applications. MQTT message support and push notifications via ntfy.sh, combined with the ability to access current measurements directly, position it as an ideal solution for Industry 4.0 applications. Whether for optimizing energy usage, responding quickly to critical measurement values, or documenting environmental conditions—this device is an essential tool for professional users.