Product Overview
The MNL-05R3R24 LCD Display 4-20mA Ultrasonic Liquid Level Meter is designed for non-contact liquid level measurement in tanks, reservoirs, water storage systems, and industrial liquid monitoring applications. It combines ultrasonic sensing, LCD display, and 4-20mA signal output to support reliable liquid level monitoring and process control.
This ultrasonic tank level sensor is suitable for water tanks, wastewater systems, storage containers, environmental monitoring equipment, and water quality related applications where continuous level data is required. The non-contact measuring method helps reduce contamination risk, wear, and maintenance compared with contact-type level sensors.
With LCD display functionality and standard industrial signal output, this liquid level meter can be integrated into control panels, monitoring systems, PLC systems, and automated water management equipment.
Key Features
LCD display design allows users to view liquid level data directly on the device.
4-20mA output supports compatibility with industrial control systems, PLCs, display instruments, and remote monitoring platforms.
Ultrasonic non-contact measurement helps reduce sensor wear and avoids direct contact with the measured liquid.
Suitable for tank level monitoring, water storage systems, environmental monitoring, and water quality related applications.
Designed for continuous liquid level detection where stable measurement and easy system integration are required.
Technical Information
| Parameter | Description |
| Product Name | LCD Display 4-20mA Ultrasonic Liquid Level Meter Tank Level Sensor Water Quality Sensor |
| Model | MNL-05R3R24 |
| Brand | Manorshi |
| Measurement Type | Ultrasonic Liquid Level Measurement |
| Display | LCD Display |
| Signal Output | 4-20mA |
| Typical Applications | Tank Level Monitoring, Water Tank Measurement, Liquid Level Detection, Water Quality Related Monitoring |
Applications
This ultrasonic liquid level meter can be used for water tank level monitoring, reservoir level measurement, wastewater treatment systems, industrial storage tanks, environmental monitoring stations, irrigation systems, liquid storage containers, and automated water management systems.
It is also suitable for OEM and ODM projects where a tank level sensor with LCD display and 4-20mA output is required for remote liquid level monitoring and control system integration.
Working Principle
The ultrasonic liquid level meter measures level by emitting ultrasonic pulses toward the liquid surface and receiving the reflected echo. The device calculates the distance based on the time required for the ultrasonic signal to return.
After calculating the distance between the sensor and the liquid surface, the device converts the measurement into liquid level data. The LCD display shows the measurement locally, while the 4-20mA output can transmit the signal to external control or monitoring systems.
Installation and Use Notes
Install the ultrasonic sensor vertically above the liquid surface and ensure that the measuring path is not blocked by tank walls, pipes, ladders, agitators, foam, or other obstacles.
For stable measurement, avoid installing the sensor near liquid inlets, strong turbulence, heavy vapor, or areas with severe surface fluctuation. A calm measuring surface helps improve echo stability and measurement reliability.
Before final installation, confirm the tank height, measuring range, output signal requirements, power supply, installation thread, environmental conditions, and compatibility with the monitored liquid.
Why Choose This Ultrasonic Level Meter
The MNL-05R3R24 ultrasonic liquid level meter offers a practical solution for users who need local display and standard industrial signal output in one device. Its LCD display supports on-site reading, while the 4-20mA output helps connect the level signal to automation and monitoring systems.
The non-contact ultrasonic measurement method makes it suitable for many liquid level applications where reducing contact with the medium, simplifying installation, and supporting continuous monitoring are important.
FAQ
What is an ultrasonic liquid level meter used for?
An ultrasonic liquid level meter is used to measure the liquid level in tanks, reservoirs, containers, wastewater systems, and industrial storage vessels without direct contact with the liquid surface.
How does this 4-20mA ultrasonic level sensor work?
It sends ultrasonic pulses toward the liquid surface and receives the reflected echo. The measured distance is converted into liquid level data and transmitted through a 4-20mA output signal.
Can this level meter be used for water tanks?
Yes. This ultrasonic level meter is suitable for water tank level monitoring, storage tank measurement, reservoir monitoring, and other liquid level detection applications.
What are the advantages of non-contact ultrasonic level measurement?
Non-contact ultrasonic measurement reduces mechanical wear, avoids direct contact with the liquid, simplifies maintenance, and is useful for applications where the liquid should not contaminate the sensor.
How should I install an ultrasonic liquid level sensor?
Install the sensor vertically above the liquid surface, keep the measuring path clear, avoid turbulence and foam when possible, and confirm that the measuring range matches the tank height.
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