Efento - Model NB-IoT -Wireless Low Temperature Logger

• Temperature: -200 to +200°C, accuracy: up to 0.5°C in +200°C and 1.3°C in -200°C
• 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
• Use a free mobile application to configure the logger, read the data from its memory, generate reports and set alert thresholds
• NB-IoT sensors send the data over the cellular network to Efento Cloud or any other cloud platform.
• Sensor is equipped with 1 m long external probe

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 5 years on battery. You can forget about changing the battery frequently or troublesome battery 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.

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. The calibration date is saved in the logger memory and it notifies the user about the suggested date of the next calibration.   

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.

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.

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.

• TEMPERATURE SENSOR    
• Range: -200 to +200°C
• Pt1000
• Accuracy: up to 0.5°C in +200°C and 1.3°C in -200°C
• Resolution: 0.1°C
• Drift: <0.1°C / year
• Measurement interval: 1 minute to 10 days, configurable
• Memory size: 40 000 measurements
• NB-IoT    
• NB-IoT band: 1, 2, 3, 4, 5, 8, 12, 13, 17, 18, 19, 20, 25, 28, 66
• 3GPP: Release 13
• Power: 20 dBm
• Bluetooth LE    
• 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; Transmission interval: 5 minutes – 10 days, configurable
• SOFTWARE UPDATES    
• Over the air (with delta mechanism); Over Bluetooth Low Energy
• POWER SUPPLY    
• Replaceable AA batteries 2 x AA,
• 4200 mAh or 3 x AA, 6300 mAh.
• Battery operating time: up to 10 years
• USB 5V with 1000 mAh rechargeable
• battery
• DIMENSIONS    
• 124x60x26
• Weight: 140 g