NB-IoT

4-20 mA / 0-10 V sensor interface

Efento 4-20 mA / 0-10 V sensor interface allows users to connect any type of analog sensor. Device can be equipped with up to four analog interfaces (2 x 4-20 mA and 2 x 0-10 V). Sensors can be powered either from the device’s battery or by an external power source. Data from the analog sensors is presented as current (4-20 mA) or voltage (0-10 V).

Efento NB-IoT devices transmit the data over cellular network (Narrowband IoT) and do not require any additional devices (router, gateway, etc.). Devices are also equipped with Bluetooth Low Energy interface, which allows quick and easy configuration with a smartphone. Efento devices can be integrated with any cloud platform.

  • Battery ensures up to 5 years of maintenance-free operation
  • NB-IoT sensors send the data over the cellular network to Efento Cloud or any other cloud platform.
  • Measurement period: 1 minute – 10 days (configurable by the user)
  • User configurable alarm thresholds. If any of the thresholds is exceeded, sensor will send the data to the platform immediately
  • The device stores 40,000 measurements in its memory, when the memory is full, the oldest measurements are overwritten
  • Sensor's configuration can be changed remotely from the cloud or with a mobile application over Bluetooth Low Energy
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Check it yourself. The starter kit includes all you need to test Efento wireless sensors and Efento Cloud platform:
- NB-IoT temperature and humidity sensor
- Efento Cloud access
- Free shipping worldwide

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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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