Level Sensors at a Glance: Three Measurement Principles, One Goal
Ultrasonic Level Sensors from MaxBotix
The ultrasonic level sensors in the MaxBotix XL-TankSensor and MB7851 series are designed for demanding industrial applications. They measure the level of liquids in tanks, cisterns, and IBC containers without contact. They operate with high precision and without coming into contact with the medium. Selected models feature a 4–20 mA output for direct integration into industrial control systems. Their weatherproof design (IP67/IP68) makes them suitable for outdoor use as well.
LiDAR Level Sensors from Benewake
The Benewake TF02-Pro-W sensors use LiDAR technology for high-precision level measurements. A unique feature is the integrated self-cleaning function, which automatically removes deposits from the lens. This feature is particularly advantageous in dusty or humid environments. The RS-485 model (TF02-Pro-W-485) is also suitable for direct integration into industrial networks.
LoRaWAN Level Sensors from Dragino
The Dragino DDS20 is an ultrasonic LoRaWAN level sensor that transmits measurement data wirelessly over several kilometers. It is particularly suitable for hard-to-reach tanks and containers where a cable connection is impractical. The solar-powered version (DDS20-LS) operates completely off-grid.
Typical Applications for Level Sensors
- Water Tanks & Cisterns: Non-contact ultrasonic and LiDAR sensors are particularly well-suited for measuring liquid levels in water tanks and cisterns. They measure without coming into contact with the water and can be used maintenance-free over long periods of time.
- IBC containers & industrial tanks: The MaxBotix XL-TankSensor series is specifically designed for large tanks and IBC containers. Ranges of up to 5 or 25 meters reliably cover even large-volume containers.
- Hard-to-reach locations: Wherever it is impractical to run cables—such as outdoor tanks, rainwater collectors, or distributed containers across large sites—the LoRa level sensor from Dragino offers the ideal solution.
- Industrial process control: Sensors with a 4–20 mA output can be integrated directly into PLC systems and other industrial controllers—without the need for additional signal converters.
How to Choose the Right Level Sensor
Before selecting a level sensor, ask yourself the following questions:
- What medium are you measuring? Water, oil, or other liquids place different demands on the sensor housing
- How large is the tank? The measuring range varies between 50 cm and 25 meters, depending on the model
- Do you need wireless transmission? Then the Dragino DDS20 with LoRaWAN is the right choice
- What interface does your control system require? Our product range includes models with analog output, 4-20mA, and RS-485
- Will the sensor be used outdoors? Pay attention to the IP protection rating and solar-powered variants