NB-IoT

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.

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

  • Temperature range: -40 to +125°C, accuracy: up to 0.4°C in the range from -40°C to +90°C and up to 0,8°C in the range +90 to +125°C
  • Humidity: 0 to 99% RH, accuracy up to 3% in the range of 0 to 90%
  • Sensor is equipped with 1 m long external probe
  • 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 July 2024

Efento Cloud update
The latest Efento Cloud update brought a bunch of new features including phone call notifications, alert notifications repeat, calibration certificates storage and calibration reminder, measurement point archiving and history of each resource in the audit trails.
How to use 4-20 mA sensors?
Check out our latest article that explains how to connect a 4-20 mA probe to Efento NB-IoT sensor, how to configure it and set the conversion formula on Efento Cloud.
Rainfall measurements
Learn how the Efento NB-IoT pulse counter is used together with a precipitation sensor in order to build a cost effective, cloud connected udometer.
Bluetooth LE - LTE gateway
We are finalizing the development of BLE - LTE gateway. The device will work with Efento Cloud and any third party cloud / server application and provide cellular connectivity to all Efento’s Bluetooth Low Energy sensors. The device will be available in September 2024.
The Mean Kinetic Temperature (MKT)
Learn how Mean Kinetic Temperature is used to evaluate the effects of temperature changes on the vaccines or drugs quality.

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