Bluetooth Low Energy

Temperature logger with external probe

Wireless temperature loggers measure and transmit temperature over Bluetooth Low Energy. You can use a free mobile application to configure the device and read the data from its memory. If you add Efento Gateway, you can build a remote temperature monitoring system for objects which need  supervision such as medical refrigerators or pharmaceutical warehouses. The logger is equipped with an external, waterproof probe.

  • Temperature: -55 to +125°C, accuracy: up to 0.5°C in the range from -10°C to +85°C and up to 2°C in the range -55 to -125°C
  • Sensor is equipped with 1 m long external probe
  • Measurement period: 1 minute – 10 days (configurable by the user)
  • The device stores 40,000 measurements in its memory, when the memory is full, the oldest measurements are overwritten
  • Battery ensures up to 5 years of maintenance-free operation
  • Add Efento Gateway and Efento Cloud to build a real time monitoring system.  The maximum distance between the sensor and the Gateway is 100 m in the open space and 20 – 30 m in the buildings
  • Use a free mobile application to configure the logger, read the data from its memory, generate reports and set alert thresholds
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Check it yourself. The starter kit includes all you need to test Efento wireless sensors and Efento Cloud platform:
- Efento Gateway
- Bluetooth Low Energy temperature and humidity sensor
- Efento Cloud access
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Newsletter (November)

Efento Cloud update.
The latest Efento Cloud update brought a bunch of new features including full support for 4-20 mA / 0-10 V sensors with conversion of the measurements to other physical values, information about signal quality for NB-IoT sensors and improved alert rules configuration.
NB-IoT sensors - FCC certification.
Efento NB-IoT sensors are now FCC certified and can be delivered and used in the USA. Please contact our sales team for more information.
New arrival! NB-IoT illuminance sensor.
We have recently launched an illuminance sensor with a measurement range of 0.01 lux to 83k lux. More information and technical specification available on the product site.
Archives monitoring - Spain.
Learn how Efento NB-IoT sensors are used to monitor environmental conditions in the Historical Archive of the Generalitat de Catalunya in order to preserve the historical documents for the future generations.
2023 IoT & Edge Developer Survey.
What do developers, architects and decision makers think about the IoT landscape in 2023? Check out the key findings from Eclipse Foundation’s annual IoT & Edge Developer Survey

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