In industrial environments, data centers, or outdoor applications, temperature and humidity management are crucial factors in protecting equipment, hardware, and processes. The Wiesemann & Theis Web‑Thermo‑Hygrometer XT provides a professional solution that guarantees maximum reliability and precision even under the harshest conditions. The robust IP67 housing allows use in humid areas, dusty industrial zones, or outdoor installations. By combining precise sensor technology, industrial-grade construction, and IoT integration, this device meets all requirements of modern Industry 4.0 infrastructures.

The Web‑Thermo‑Hygrometer XT combines temperature monitoring, humidity measurement, and dew point calculation in a sealed system. It provides reliable data even with strong air circulation, high temperature fluctuations, or aggressive environmental influences. Thanks to fully integrated network functionality and compatibility with standard protocols such as MQTT, OPC UA, and REST, the device can be seamlessly integrated into existing monitoring systems. With optional W&T Cloud connectivity, all measurement trends are visually displayed and accessible worldwide.

For operators of complex facilities or data centers, this device offers one of the most dependable solutions for continuous monitoring and preventive damage control. Unlike conventional measurement devices, the XT model is designed for long-term industrial operation – providing stable data acquisition, integrated alarm architecture, and energy-efficient power supply via Power‑over‑Ethernet (PoE) or alternatively 24–60 V DC. Its modular design allows for flexible installations and greatly simplifies maintenance and configuration.

Technical Robustness and Precision

The W&T Web‑Thermo‑Hygrometer XT excels with technical perfection in every component. The device’s IP67 protection class guarantees complete dust resistance and protection against temporary immersion in water. The sensor itself is rated IPX4 and withstands moisture even under direct splash exposure. This makes the device ideal for demanding scenarios commonly found in production environments or outdoor settings.

The integrated sensor system measures temperatures from ‑40 °C to +85 °C and relative humidity from 0 to 100 %. The internal dew point calculation continuously determines the condensation threshold, warning early of moisture risks. Even in continuous operation, the system provides highly accurate data, accessible in real time via the web server or automated interfaces. All measurement processes comply with international standards – including EN 61000‑6‑2 and EN 55032 Class B for electromagnetic compatibility and interference resistance.

Functional Networking and Long-Term Data Utilization

Thanks to open IoT protocols, the Web‑Thermo‑Hygrometer XT can be easily integrated into existing networks, control centers, or automation systems. Interfaces such as OPC UA, REST API, and MQTT enable direct communication with SCADA systems or cloud‑based platforms. With up to 12 configurable alarm channels, the device automatically reports threshold violations via e‑mail, SNMP trap, or Syslog. These features can be customized to specific operational requirements to ensure rapid response to critical situations.

The integrated data logger records measurements for periods ranging from several months to up to 20 years. The logging interval is freely configurable, enabling both detailed records and long‑term reporting. Data exports in formats such as CSV, Excel, or via ODBC and FTP allow seamless further processing. Optional cloud integration provides a fully centralized system for monitoring and analyzing temperature and humidity values across the entire network.

Technical Specifications

• Temperature range: ‑40 °C to +85 °C
• Humidity range: 0–100 % RH (non‑condensing)
• Dew point function: Continuous calculation to prevent condensation
• Protection rating: IP67 (housing), IPX4 (sensor)
• Data logger: Long‑term storage for 12 weeks to 20 years
• Protocols: OPC UA, REST API, Modbus‑TCP, MQTT, SNMP
• Alarms: Up to 12 thresholds with e‑mail, SNMP, or Syslog notifications
• Power supply: PoE or 24–60 V DC
• Mounting: DIN rail or panel mounting
• Certification: EN 61000‑6‑2, EN 55032 Class B

Resilient in Industrial and Outdoor Applications

In factories, production plants, and outdoor areas, the device delivers reliable results where conventional sensors would fail. Its robust IP67 design ensures that dust, humidity, or water spray do not affect measurement accuracy or signal stability. Additionally, the design with waterproof cable glands enables safe use in technical areas such as electrical cabinets or machine controls.

The wide voltage range from 24 to 60 V DC makes the system particularly flexible and adaptable to existing power infrastructures. PoE power supply offers an alternative solution for centrally wired network environments and significantly reduces installation effort. In Green‑IT applications, the system not only contributes to energy efficiency but also enables monitoring and optimization of cooling performance for IT systems or production facilities.

Typical Application Areas

• Industrial plants: Continuous climate control in production halls or electrical cabinets.
• Server rooms and data centers: Optimal conditions for hardware and network equipment.
• Outdoor installations: Reliable measurement under weather and temperature variations.
• Food and pharmaceutical industries: Monitoring of storage and production areas for quality assurance.
• Agriculture and greenhouses: Environmental control under outdoor conditions.
• Automated infrastructure: Seamless integration into IoT and SCADA systems for smart monitoring.

User-Friendly Design and Installation

Installation of the Web‑Thermo‑Hygrometer XT requires no special tools. Using the integrated DIN‑rail mount, the device is easily installed and connected via Ethernet cable. The browser‑based interface enables quick setup and real‑time monitoring. All key system parameters are displayed through interactive graphics, simplifying data analysis and trend evaluation. Multiple XT devices can also be centralized in the W&T Cloud – ideal for large infrastructures with distributed sensors.

Advantages of the Web‑Thermo‑Hygrometer XT

• IP67 protection for reliability in all environments
• Accurate real‑time temperature and humidity measurement
• Dew point calculation to prevent moisture damage
• Energy‑efficient operation via PoE or DC power
• Seamless integration into IoT and Industry 4.0 systems
• Long‑term data storage with battery‑buffered clock
• Easy web configuration without additional software
• W&T Cloud for worldwide data access
• Five‑year manufacturer warranty for long‑term operation
• Standards‑compliant, robust, and low‑maintenance

Practical Benefits for Users

In practical use, the Web‑Thermo‑Hygrometer XT delivers reliable performance even under extreme conditions. Operators of manufacturing facilities use it for process analysis and quality assurance, while IT administrators employ it to track temperature gradients in server racks. In agriculture, its IP67 protection allows permanent outdoor installation – for example, in greenhouses or storage areas. Through cloud connectivity, users have constant access to current data and historical trends – regardless of location.

A Sensor for High‑Performance Monitoring

The Wiesemann & Theis Web‑Thermo‑Hygrometer XT is more than a simple temperature sensor – it is a complete industrial‑grade monitoring system for temperature, humidity, and dew point. With its robust IP67 construction, flexible power options, and full IoT integration, it is the ideal choice for companies that demand maximum data security and operational continuity. Whether used in manufacturing, server rooms, outdoor environments, or logistics, this device provides long‑term stability, precise values, and full climate control. The combination of German engineering quality and network intelligence makes the XT model one of the leading systems for reliable climate monitoring of the future.