NB-IoT
Wireless water level logger - NB-IoT
The NB-IoT Water Level Data Logger is a professional device equipped with a high-accuracy submersible pressure sensor.
- Cloud Integration: Automatically transmits collected water level data directly to Efento Cloud or any other cloud-based platform for seamless storage, visualization, and advanced analysis.
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Local Access: Free mobile application allows for easy device configuration and direct data readout from internal memory.
Engineered for unattended installations, this logger ensures reliable data transmission from challenging locations.
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Advanced Transmission: Employs Narrowband-IoT (NB-IoT) technology for robust wireless data transfer.
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Optimized Power: The NB-IoT approach ensures extremely low power consumption and wide area network coverage, making it ideal for remote or underground deployments where power is limited.
The versatility of the logger makes it suitable for a wide range of liquid level monitoring tasks:
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Water Management: Liquid level measuring in tanks, rivers, lakes, sea, wells, tubes, and underground water reservoirs.
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Storage Monitoring: Water tank level measurement and control.
- Probe length: 15m (different lengths available on request)
- Measurement period: 1 minute – 10 days (configurable by the user)
- Battery ensures up to 5 years of maintenance-free operation
- 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
- NB-IoT sensors send the data over the cellular network to Efento Cloud or any other cloud platform.
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.Water tank level measurement and control
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Water Management: Precise liquid level measurement and control in water tanks, rivers, lakes, sea, wells, and underground water reservoirs.
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Fuel Monitoring: Level measurement and monitoring for various fuel types (e.g., diesel, gasoline, kerosene).
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Specialized Environments: Available for demanding applications, including high-temperature liquids (up to 100C) and highly corrosive liquids (available upon custom request).
Sensor & Performance
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Sensing Element: Adopts a high-performance diffusion silicon oil-filled sensor.
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Measurement Range: Maximum measurement range of up to 200 meters or more.
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Accuracy Options: High stability with accuracy options available: 0.2% or 0.5% (Full Scale).
Construction
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Housing Material: Constructed from durable Stainless Steel (304 SST).
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.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.4-20 mA interface
Analog input allows users to connect external 4-20 mA sensors. External sensors can be powered by the device or by external power supply
| PROBE | Probe length: 15 m (other lengths – 0,1-200m, available on request) |
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| RADIO MODULE | Communication: Bluetooth Low Energy (BLE) Radio frequency: 2,4 GHz Power: 2,5 mW (4 dBm) Range: up to 100 m (LOS) Communication standard: Bluetooth Smart (Bluetooth Low Energy, Bluetooth 4.0) Transmission frequency: 1 s |
| POWER SUPPLY | Package of 3 x AA, 6300 mAh (replaceable) USB 5V with 1000 mAh rechargeable |
| DIMENSIONS | Thread: 1/4-18 NPT Dimensions: 162 x 82 x 37 mm Weight: 0,7 kg |
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 May 2025
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