Bluetooth Low Energy

Wireless temperature and humidity logger with external probe

The sensor is equipped with an external, temperature and humidity probe with a length of 1m, allowing measurements in places where the sensor cannot be placed directly.

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 monitoring system.

  • Temperature: -40 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
  • Humidity: 0 to 100% RH, accuracy 4% in the range of 0 to 80% and 7% in the range of 81 to 99%
  • 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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Quick and easy implementation

Monitoring system without subscription fees.

Efento Cloud

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Order a starter kit - $197 only

The offer is dedicated to companies only.

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
- Free shipping worldwide

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Newsletter (January)

NB-IoT CO2 sensor released!
We recently released the NB-IoT CO2 sensor. It may be used to monitor the CO2 levels (400 ppm – 5000 ppm) in office spaces to prevent spreading of COVID-19 disease.
NB-IoT motion / presence sensor released!
Allows to detect motion (like regular PIR sensor used in alarm systems) or room occupancy (conference rooms, office spaces, etc.). User can configure the device to detect every single movement or set the number of movements in a time period required to detect the room occupancy
Preserving stained glass windows for the next generations
Discover how Efento NB-IoT sensors are used by the conservation team of St. Marien church in Lübeck (Germany) to monitor the environmental conditions.
Efento CoAP loader update
Efento CoAP loader provides an easy and quick way to integrate Efento NB-IoT sensors into custom solutions. We recently updated it to support all sensor types and all their features
IoT connectivity from space?
Rakuten and University of Tokyo exploring low Earth orbit satellites for IoT coverage. The joint R&D project will span the next four years and involve the creation of a satellite network to connect NB-IoT and LTE devices.

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