Vaisala RFL100 Wireless Temperature & Humidity Data Logger
[5 Models]The Vaisala RFL100 Wireless Temperature & Humidity Data Logger delivers accurate, reliable environmental monitoring for laboratories, pharmaceutical manufacturing, biotechnology facilities, cleanrooms and cold storage environments. Using Vaisala’s proprietary VaiNet wireless technology, the RFL100 provides long-range wireless communication with the Vaisala ViewLinc Monitoring System, enabling real-time monitoring, alarms and secure historical reporting without complex wiring.
Designed for regulated industries, the RFL100 combines industry-leading measurement accuracy with detachable high-accuracy probes, a robust IP54 enclosure and up to 30 days of onboard memory. Even if network communications are temporarily interrupted, measurements continue to be recorded and are automatically synchronised with ViewLinc once the connection is restored, ensuring complete data integrity.
- Wireless monitoring using VaiNet technology
- Up to 30 days onboard memory
- Long battery life of up to 18 months
- Compatible with ViewLinc Monitoring Software
Reliable Wireless Monitoring
Long-range VaiNet wireless technology provides secure, reliable communication across large facilities without repeaters in many installations.
Continuous Data Protection
Items are stored in cold rooms and warehouses where temperature monitoring is crucial. A scalable monitoring system is ideal for short to long-term storage.
High Accuracy Measurements
Compatible with a range of Vaisala temperature and humidity probes, delivering industry-leading measurement performance.
Fast Probe Replacement
Detachable probes simplify calibration and maintenance without replacing the complete data logger.
The Vaisala RFL100 is ideal for continuous environmental monitoring in regulated and temperature-controlled environments.
Typical applications include:
- Pharmaceutical manufacturing
- Biotechnology laboratories
- GMP monitoring
- Temperature monitoring
- Relative humidity monitoring
- Cleanroom monitoring
- Laboratory monitoring
- Cold room monitoring
- Refrigerator monitoring
- Freezer monitoring
- Ultra-low temperature freezer monitoring
- Vaccine storage monitoring
- Warehouse environmental monitoring
- Stability storage monitoring
- Environmental monitoring systems
The Vaisala RFL100 combines reliable wireless communication with high-performance environmental sensing to provide continuous monitoring across critical applications.
- Wireless communication using Vaisala VaiNet technology
- Compatible with Vaisala ViewLinc Monitoring Software
- Temperature and humidity monitoring
- Optional temperature-only probe for ultra-low temperatures down to -196°C
- Detachable probes for simplified calibration
- Typical battery life of 18 months
- Up to 30 days FIFO onboard memory
- Automatic data synchronisation following network interruption
- IP54-rated housing
- USB port for direct data download
- Secure encrypted wireless communications
- Large LCD display showing readings, battery status and signal strength
- SI traceable measurements
- Standard AA battery operation
- Multiple probe configurations for different applications
The RFL100 is available with several probe options to suit different monitoring applications.
| Model | Measurement | Temperature Range |
|---|---|---|
| HMP110 | Relative Humidity & Temperature | -40°C to +80°C |
| HMP110T | Temperature | -40°C to +80°C |
| HMP115 | Relative Humidity & Temperature | -40°C to +60°C |
| HMP115T | Temperature | -40°C to +60°C |
| TMP115 | Temperature | -196°C to +90°C |
General Specifications:
Compatible with ViewLinc 5.0 and above
Wireless communication using VaiNet
Indoor wireless range up to 100 m
Over 500 m line-of-sight
30-day FIFO memory
One reading every minute
IP54 enclosure
USB service connection
Two AA batteries
Typical battery life: 18 months
Why Choose the Vaisala RFL100?
The Vaisala RFL100 has been developed specifically for organisations that require dependable environmental monitoring without the complexity of traditional wired systems.
Its combination of long-range wireless communication, industry-leading temperature and humidity measurement, and seamless integration with the ViewLinc Monitoring System makes it an ideal solution for regulated laboratories and pharmaceutical environments.
Unlike conventional data loggers, the RFL100 continues recording data even during temporary network interruptions, automatically synchronising historical measurements once communications are restored. Detachable probes simplify calibration, while multiple probe options allow the system to monitor everything from ambient laboratory conditions to ultra-low temperature freezers operating down to -196°C.
Supported by Withnell Sensors, the RFL100 provides a scalable monitoring solution that can grow alongside your facility while maintaining the traceability and reliability demanded by regulated industries.
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Explore the Vaisala RFL100 Wireless Data Logger Brochure
Download the Vaisala RFL100 brochure for detailed technical specifications, probe options, wireless communication details and installation guidance.

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