The HW group Temp‑1Wire Pt100 Frost is one of the most powerful Pt100 temperature sensors developed for precise measurement in extremely cold environments. It is specifically engineered for industrial, pharmaceutical, and scientific applications where maximum accuracy is required under extreme conditions. With an impressive measurement range from –200 °C to +160 °C, this sensor handles temperature monitoring far beyond the capabilities of standard sensors.

The rugged stainless‑steel probe of the Temp‑1Wire Pt100 Frost ensures exceptional durability and stability, even in environments with large temperature fluctuations or high humidity. The IP67‑rated waterproof and dustproof housing allows secure operation both in cryogenic indoor environments and outdoor installations. Thanks to HW group’s proven 1‑Wire technology, the sensor provides safe, energy‑efficient, and flexible integration into existing monitoring infrastructures.

Designed for demanding applications such as pharmaceutical deep freezers, biotechnology laboratories, food cold chain logistics, and long‑term storage of temperature‑sensitive substances, the Temp‑1Wire Pt100 Frost guarantees precise and stable readings. Its high accuracy, optional 8‑point calibration, and audit‑ready documentation make it a reliable solution for process safety and quality verification.

When combined with the HW group IoT monitoring ecosystem — for example, with Poseidon2, Ares, or STE2 R2 devices — the sensor can be monitored, analyzed, and managed in real time. This makes temperature monitoring in critical environments efficient, sustainable, and compliant.

Key Technical Specifications of the HW group Temp‑1Wire Pt100 Frost

• Extreme measurement range: –200 °C to +160 °C
• High‑precision Pt100 stainless‑steel probe
• Fully IP67‑protected housing, waterproof and dustproof
• RJ11 1‑Wire interface for combined power and data transmission
• Supplied with 3 m RJ11 cable
• Compatible with HW group devices such as Poseidon2, Ares, and STE2 R2
• Optional 8‑point calibration for audits and certifications

The 1‑Wire standard enables reliable bidirectional communication between sensor and monitoring controller. The linear characteristics of the Pt100 probe ensure consistent accuracy even at extremely low temperatures. Data is transmitted in real time and can be automatically processed, logged, and visualized by the connected system.

Integration into HW group Monitoring Systems

Integration of the Temp‑1Wire Pt100 Frost is simple. Once connected via the RJ11 port to an HW group monitoring device, the system automatically recognizes the sensor. All measurement data immediately becomes accessible through the device’s web interface. Users can define thresholds, configure alarms, and customize measurement intervals. When defined thresholds are exceeded, alerts are sent via email, SMS, or SNMP trap.

When used with the SensDesk.com IoT portal, a wide range of additional functions becomes available: monitoring can be handled centrally via cloud connectivity, allowing global access to temperature data from mobile or desktop devices. Historical readings can be visualized graphically or exported automatically as PDF reports — ideal for long‑term monitoring in regulated industries.

Typical Applications of the Temp‑1Wire Pt100 Frost

• Cryogenic applications in research, biology, and materials science down to –200 °C
• Pharmaceutical deep‑freezing – storage of vaccines, cell samples, and temperature‑sensitive chemicals
• Food and cold storage monitoring in compliance with HACCP regulations
• Agricultural facilities – monitoring temperature‑sensitive goods and materials
• Data centers and laboratories requiring precise equipment and room temperature control
• Outdoor setups such as weather stations and remote cold zone monitoring

Practical Advantages of the HW group Temp‑1Wire Pt100 Frost

• Ultra‑wide temperature range for the most demanding measurements
• Compact, maintenance‑free stainless‑steel construction
• Easy RJ11 plug‑and‑play connection for fast commissioning
• High compatibility within the HW group ecosystem
• Excellent data integrity through 1‑Wire standard communication
• Audit‑ready temperature logging with optional calibration
• Alarm notifications via email, SMS, and SNMP for maximum process safety

Optional 8‑Point Calibration – Certified Precision

For highly regulated sectors such as pharmaceuticals, medicine, and biotechnology, HW group offers an optional 8‑point calibration service. This enables digitally verified fine‑tuning of the sensor throughout its entire measurement range. Certified calibration supports internal and external audits, ensuring that results meet required standards and compliance regulations.

This calibration also allows users to integrate data directly into validated management systems, supporting efficient quality assurance processes — particularly valuable in Good Manufacturing Practice (GMP) environments.

Example Applications

A common use case for the HW group Temp‑1Wire Pt100 Frost is the monitoring of medical ultra‑low temperature freezers used for storing vaccines or biological samples at –80 °C. In such environments, accurate temperature documentation is often the key to maintaining proper storage conditions. In the food industry, the sensor monitors temperatures in storage areas and production lines for quality assurance. Even in remote locations, where sensors are connected via the Ares GSM monitoring system, the Temp‑1Wire Pt100 Frost delivers stable and precise readings.

The HW group Temp‑1Wire Pt100 Frost is the specialist for ultra‑low‑temperature measurement. Its rugged design, ultra‑wide measurement range, and seamless integration with HW group monitoring systems make it an essential tool for demanding monitoring applications. Whether in the pharmaceutical sector, laboratory research, food manufacture, or industrial cryogenic processes, this sensor ensures accurate, reliable, and audit‑compliant temperature data for maximum process security.

Through the SensDesk.com dashboard and real‑time monitoring capability, operators gain complete control, flexible alerts, and full documentation. Combined with Poseidon2, Ares, and STE2 R2 systems, the Temp‑1Wire Pt100 Frost becomes a professional, high‑end solution for ultra‑cold monitoring at the highest technological level.