Web-Thermometer 8x

Comprehensive Temperature Monitoring with the Web Thermometer 8x from Wiesemann & Theis

In today’s connected world, precise monitoring of ambient temperatures in areas such as IT infrastructures, industrial processes, or office environments is of critical importance. The Web Thermometer 8x from Wiesemann & Theis is a highly advanced measuring device that captures up to eight temperature points simultaneously and provides the data via a network.

With its advanced sensor technology, integrated data logger, and extensive network capabilities, it offers a reliable solution for demanding monitoring tasks. This article highlights the technical features, versatile applications, and benefits of this innovative device that takes temperature monitoring to the next level.

Precise Multi-Point Measurement with Pt100/Pt1000 Sensors

The Web Thermometer 8x is equipped with eight measurement inputs for Pt100 and Pt1000 sensors, capable of recording temperatures from -50 °C to +180 °C (with W&T sensors). The extended input range of the device supports -200 °C to +650 °C, making it suitable for a wide range of applications. Pt100 and Pt1000 sensors offer high accuracy and stability, making them ideal for demanding environments such as industrial processes or server rooms. The ability to monitor up to eight temperature points simultaneously provides comprehensive control of complex systems, such as large data centers or production facilities. This precision is critical to prevent equipment damage, increase energy efficiency, and reduce operational costs.

Intuitive Operation and Network Integration

The Web Thermometer 8x is extremely user-friendly thanks to its intuitive web interface. Without additional software, users can access real-time temperature data from all eight measurement inputs via a web browser, analyze trends, and adjust settings. The graphical representation of temperature curves helps identify trends and potential issues, improving monitoring efficiency. This user interface enables quick commissioning and customization according to individual requirements, making the device ideal for both experienced IT administrators and beginners. The ability to monitor multiple temperature points makes the Web Thermometer 8x perfectly suited for complex monitoring tasks in large-scale environments.

Flexible Alarm and Reporting Features

The Web Thermometer 8x offers comprehensive alarm and reporting capabilities. Up to 12 individually configurable alarms can be set, which automatically send notifications when defined temperature limits are exceeded at any of the eight measurement inputs. These alerts can be transmitted via email, SNMP trap, or Syslog—especially valuable in critical environments like server rooms, where fast responses are crucial. Additionally, the reporting function enables the regular dispatch of temperature summaries by email, including data from all measurement points. These reports are ideal for audits, energy analyses, or documentation of operational conditions, increasing transparency in monitoring.

Seamless Integration into Industry 4.0 and IoT

The Web Thermometer 8x is fully equipped for the demands of Industry 4.0 and the Internet of Things (IoT). It supports modern protocols such as OPC UA, REST, and MQTT, allowing easy integration into existing automation systems. In addition, it offers interfaces like SNMPv1, SNMPv2c, SNMPv3, Modbus-TCP, OPC DA, and Sensobase for database integration via ODBC. Developers can access measurement data directly via TCP or UDP sockets to create custom solutions. The HTTP interface allows direct access to live readings, for example via JavaScript (AJAX), enabling dynamic embedding into websites or applications. This comprehensive connectivity makes the device an indispensable tool for networked environments.

Long-Term Data Storage and Global Access

An integrated data logger stores temperature data from all eight inputs for a period of at least 16 weeks and up to 20 years, depending on the selected logging interval (15 seconds to 1 hour). Data can be exported in various formats such as FTP, Excel files, or email attachments for flexible post-processing. Connection to the W&T Cloud enables global access to stored measurements anytime and anywhere. An internal battery-buffered clock provides precise timestamps, which can be further improved via time server synchronization. These features ensure reliable documentation and analysis of temperature trends, especially beneficial in complex environments with multiple measurement points.

Versatile Fields of Application

The Web Thermometer 8x is designed for a wide range of applications. In server rooms and network cabinets, it monitors ambient temperatures at up to eight points to prevent overheating and extend hardware lifespan. In office environments, it helps optimize air conditioning, improving comfort and reducing energy costs. In industrial settings, the device is suited for monitoring processes where precise temperature control at multiple points is essential. In the context of Green IT, the Web Thermometer contributes to increased cooling efficiency of server room HVAC systems by providing accurate data for optimization. The ability to monitor eight temperature points simultaneously makes it particularly efficient for large and complex systems such as data centers or production facilities.

Flexible Power Supply and Standards Compliance

The Web Thermometer is powered via Power-over-Ethernet (PoE), supporting both phantom power over data pairs and supply via unused wire pairs. Alternatively, an external power supply can be used, expanding installation options in environments without PoE infrastructure. The device complies with standards for use in office and industrial locations. It offers high immunity to interference according to EN 61000-6-2 and low emissions according to EN 55032:2015 + A1 Class B, EN 61000-3-2, and EN 61000-3-3. These features ensure reliable and interference-free operation, even under demanding conditions.

Please note: No power supply is included in the scope of delivery.

Durability and Reliability

The Web Thermometer 8x is designed for continuous operation and comes with a five-year warranty. Its robust construction and DIN rail mounting capability make it perfect for industrial applications. The internal battery-backed clock ensures accurate timekeeping, which is further optimized by synchronization with a time server. These characteristics highlight the device’s long service life and reliability, even in demanding environments.

An Indispensable Tool for Temperature Monitoring

The Web Thermometer 8x from Wiesemann & Theis is a state-of-the-art solution for precise temperature monitoring at up to eight measuring points. With its Pt100/Pt1000 sensors, integrated data logger, and extensive network capabilities, it offers a flexible and reliable solution for server rooms, offices, and industrial applications. Support for modern protocols such as OPC UA, REST, and MQTT as well as cloud connectivity with the W&T Cloud make it ideal for the demands of Industry 4.0. Whether for optimizing energy efficiency, logging measurement data, or preventing equipment damage—this device is an indispensable tool for professional users.