NB-IoT
Wireless temperature and humidity logger with external temperature probe
The wireless temperature and humidity logger is equipped with an internal temperature and humidity sensor and external, waterproof temperature probe used to measure the temperature in the points where the logger cannot be placed directly. The probe is available in two variants: standard or intended for contact with food, in the form of a sharpened skewer.
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: -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
- Humidity: 0 to 99% RH, accuracy up to 4% in the range of 0 to 80%
- 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
Key features
Efento Cloud
Together with Efento Cloud, the sensors enable constant monitoring, alerting about exceeding safe limits, generating reports and analyzes.
Long battery life
Loggers have been designed to work for up to 10 years on batteries. You do not have to remember about changing the batteries frequently or troublesome batteries charging.
Lower costs
Choosing wireless sensors and a cloud platform reduces the installation and maintenance costs.
Wide range of sensors
Efento sensors can measure various physical and chemical values. If you decide on one sensor today, you can expand your sensors fleet to another types anytime you want.
Integration
Standard communication protocols allow integration with any cloud platform or mobile application.
Easy set up
All you need to set up a logger is a smartphone with a free mobile application. The whole configuration takes no more than 15 minutes.Edge analytics
Devices analyse the data and send it to cloud platform when needed. This allows to decrease the number of cellular transmissions and increase the battery lifetime. There are several types of analyses that can be performed by the sensor: from a simple comparison of the measured value to the threshold to more complex mathematical operations.Software over the air update (SOTA)
The sensors are equipped with over the air software update mechanism, thanks to which, your fleet of sensors will always have the latest version of software. Moreover, SOTA is based on delta mechanism and only the difference between the current and the new version of the software is sent to the device. This saves both the battery and data transfer.
Full remote configuration
All the settings of the NB-IoT sensors can be changed remotely in a secure way. This allows you to easily reconfigure thousands of the deployed devices, no matter how far they are located.Integration
We believe that the Internet of Things is about integrating data sources, analysing the data and drawing conclusions based on it. If you want to integrate Efento loggers with your software, cloud platform or mobile application, we will provide you with the necessary documentation, libraries, SDKs and we will gladly assist you.Calibration certificate
At the customer’s request, each Efento sensor can be supplied with a calibration certificate in accordance with ISO / IEC 17025. The test is performed in an external, ILAC certified laboratory.Sensor’s passport
Sensor’s passport documents the entire lifecycle of a device. By accessing the data on Efento Cloud platform, the user can check all information about the sensor: date of sale, warranty status, date of calibration, information on all service activities. In addition, the user can download all documents regarding the device – a duplicate of calibration certificate or service protocols.
| TEMPERATURE SENSOR | Internal temperature sensor: External temperature sensor (probe): Resolution: 0.1°C Drift: <0.1°C / year Measurement interval: 1 minute to 10 days, configurable Memory size: 40 000 measurements |
|---|---|
| HUMIDITY SENSOR | Range: 0 to 99% RH Accuracy: 4% in 0 to 80% RH Resolution: 1% Drift: <0.25% / year Measurement interval: 1 minute to 10 days, configurable Memory size: 40 000 measurements |
| NB-IoT | NB-IoT bands: 3GPP: Release 13 Power: 23 dBm ±2 dB |
| BLUETOOTH LE | Communication: Bluetooth Low Energy (BLE) Radio module frequency: 2,4 GHz Power: 2,5 mW (4 dBm) Range: up to 100 m (LOS) Transmision period: 1 s |
| COMMUNICATION | Protocol: CoAP; Trasnsmission interval: 5 minutes – 10 days, configurable |
| SOFTWARE UPDATES | Over the air (with delta mechanism); Over Bluetooth Low Energy |
| POWER SUPPLY | Package of 3 x AA, 6300 mAh (replaceable) |
| DIMENSIONS | 124 x60 x 26 mm Weight: 0,17 kg |
| PROBE | 1 m (it is possible to order different lengths) |
Case studies
St. Mary’s Church in Lübeck – NB-IoT based temperature and humidity monitoring system
The consultants commissioned with the project had to select suitable temperature and humidity loggers to monitor the temperature of the stained glass surface as well as the temperature and humidity of the indoor environment.
NOT SURE YET?
Order a starter kit - $165 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:
- NB-IoT temperature and humidity sensor
- Efento Cloud access
- Free shipping worldwide
Our customers
Newsletter November 2024
Efento Cloud - 6-Year Data Retention
We’re extending data retention on Efento Cloud to 6 years, now covering all sensors - new and existing - at no extra cost.Subscribe to our Newsletter
You can unsubscribe at any time