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    Ultrasonic Water Level Sensor, 5/10/15/20m

    SISCO ultrasonic water level sensor offers reliable non-contact water level measurement with ranges of 5 m to 20 m. Equipped with 4–20mA/RS485 output, high-precision temperature compensation, and ±0.5% accuracy, it provides stable level monitoring for storage tanks, rivers, reservoirs, and industrial water applications.
    SKU: SISCO-ULT-TKCSBA
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    $245.15
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    🚚 Free shipping
    🔙 30-day returns
    📅 Delivery: 7-12 days
    Overview


    SISCO ultrasonic level transmitter provides accurate non-contact water level measurement with measuring ranges of 5 m, 10 m, 15 m, and 20 m. Featuring ±0.5% accuracy, 4–20mA/RS485 signal output, and automatic temperature compensation, it delivers stable and reliable data for tank level monitoring, river level measurement, and water management systems. With an IP65 protection rating and durable ABS housing, it ensures long-term operation in outdoor and industrial environments.


    Ultrasonic water level meter button


    Ultrasonic Level Transmitter with Flexible Measuring Range

    • Ultrasonic level transmitter features a high-precision temperature sensor with automatic sound velocity compensation, ensuring stable and accurate level measurement.
    • Level ultrasonic sensor supports multiple measuring ranges from 5 m to 20 m, suitable for tank level monitoring, pools, and river water measurement.
    • Ultrasonic liquid level sensor uses a rugged ABS housing with excellent impact and aging resistance for reliable operation in harsh environments.
    Ultrasonic water level meter display

    Ultrasonic Level Sensor for Outdoor & Industrial Applications

    • Ultrasonic tank level sensor offers IP65 protection against rain, splashing water, and dust, ensuring reliable operation in outdoor and industrial environments.
    • Ultrasonic level transmitter adopts a fully sealed probe structure with reliable protection for internal components, ensuring stable level measurement performance.
    • Ultrasonic water level sensor features a high-definition LCD display, showing level data clearly for convenient monitoring and operation.

     

     

    Applications

    Capable of stable non-contact liquid level measurement under normal temperature and atmospheric pressure, the digital ultrasonic level transmitter can be applied to water level monitoring of rivers and reservoirs, liquid level measurement of sewage tanks, and detection of liquid media such as fruit juice and milk.

    Wastewater pools

    Wastewater Pools

    Reservoirs scene

    Reservoirs Scene

    Fruit juice and milk

    Fruit Juice And Milk

    Fire water tank picture

    Fire Water Tank

    Specs

     

    Model SISCO-ULT-TKCSBA
    Range Size 0~15m
    Blind Area Range 0.35~0.6m
    Distance Measurement Accuracy ±0.5% (Standard Conditions)
    Resolution 1mm
    Withstand Voltage 0.2Mpa
    Output Signal 4~20mA, RS485
    Supply Voltage DC 24V
    Ambient Temperature -20℃~60℃
    Protection Level IP65
    Dimensions 30cm×20cm×15cm
    Weight 1kg

     

    Structure Diagram

    Ultrasonic water level meter structure diagram

    FAQs

    Q1: What is the blind zone of a digital ultrasonic level transmitter?
    A1: The blind zone of a digital ultrasonic level transmitter is the minimum distance where the sensor cannot provide accurate level measurement. It is typically 0.25–0.6m, depending on the sensor model. Maintaining a proper distance between the sensor and liquid surface helps ensure reliable and accurate ultrasonic level measurement.

    Q2: What is an ultrasonic water level sensor?
    A2: An ultrasonic water level sensor is a non-contact measuring device that uses ultrasonic waves to detect the distance between the sensor and the water surface. It calculates the water level by analyzing the reflected signal, providing accurate and reliable water level measurement for tanks, rivers, reservoirs, and industrial applications.

    Q3: Can a digital ultrasonic level sensor measure wastewater?
    A3: Yes, a digital ultrasonic level sensor is suitable for wastewater measurement. Its non-contact ultrasonic technology allows reliable level monitoring in sewage tanks, wastewater treatment systems, and industrial drainage applications without direct exposure to contaminated liquids. Proper installation helps ensure accurate and stable measurements.

    Tips: What output signals does the ultrasonic water level sensor support?

    The ultrasonic water level sensor supports 4–20mA and RS485 output, allowing easy integration with PLCs, control systems, and remote monitoring platforms for industrial automation and real-time level monitoring.

    Warranty

    Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.


    What is covered?

    SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.


    What is not covered?

    • Product purchased from anyone other than a SISCO store or a SISCO authorized reseller.
    • Expendable parts.
    • Routine cleaning or normal cosmetic and mechanical wear.
    • Damage from misuse, abuse or neglect.
    • Damage from use of parts other than SISCO approved.
    • Damage from use outside the product’s usage or storage parameters.
    • Damage from use of parts not sold by SISCO.
    • Damage from modification or incorporation into other products.
    • Damage from repair or replacement of warranted parts by a service provider other than a SISCO authorized service provider.
    • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
    5.0 1
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    Jerome | 3/3/2026 1:07 AM
    The intermediate ultrasonic water level meter is performing stably.
    The main reason I chose it is that it's a non-contact measurement system. Unlike submersible systems, I don't have to worry about wastewater corrosion or the probe getting tangled in debris, which is much more convenient. After a week of installation and operation, the data matches the actual liquid level perfectly, the blind zone is very small, and most importantly, the stability is good. I hope it can withstand the humid environment of the factory; durability is all I need.