Ultrasonic Level Sensor for Water/Liquid, 4-20mA

SKU: SUCH-ULS-05

$130.12

● Measuring range from 0 to 1/2/3/4/5m ● Output signal 4-20mA, 2-wire ● Protection rating IP65 or IP68 ● Compatible with water and various liquids

Measuring Range *

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🕒 Delivery date: 6-12 days

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Overview
Specs
Application
FAQ
Reviews

Overview

This ultrasonic water level sensor uses non contact measurement technology with a 0 to 1/2/3/4/5m measuring range and a 4-20mA two-wire output for stable signal transmission. With IP65/IP68 protection and a built-in LCD display, it delivers high accuracy and reliable performance in outdoor and industrial environments. It is ideal for tanks, reservoirs, and chemical containers, ensuring accurate liquid level monitoring while avoiding direct contact with the measured medium.

Feature

SUCH ultrasonic liquid level sensor adopts non-contact measurement technology, effectively avoiding contamination or damage when used with corrosive or contaminated fluids.
Equipped with an integrated LCD screen, the ultrasonic level sensor provides clear, real-time indication of level or distance for convenient on-site monitoring.
Housed in a rugged IP65/IP68-rated enclosure, the ultrasonic water level transmitter is engineered for reliable operation in outdoor and harsh industrial environments.
The two-wire 4-20 mA output allows seamless connection to PLCs, indicators, and other control or automation systems.
With high measurement accuracy and broad temperature adaptability, this ultrasonic tank level sensor delivers stable and consistent performance under varying environmental conditions.

Dimension (Unit: mm)

Ultrasonic level sensor for water/liquid dimension

Wiring Diagram

Two-wire Instrument Wiring

Note: Do not use the same DC24V power supply as the frequency converter. It is best to use an isolator.

Ultrasonic water tank level sensor wiring diagram

Installation Method

Ultrasonic water tank level sensor installation method

Specs

Measuring Range	0–1 m / 0–2 m / 0–3 m / 0–4 m / 0–5 m
Dead Zone	0.25–0.6 m
Accuracy	0.25–0.5% under standard conditions
Output Signal	4–20 mA two-wire
Power Supply	DC 12V / DC 24V / AC 220V
Display	Built-in LCD for level/distance reading
Operating Temperature	–20°C to +60°C
Protection Rating	IP65 / IP68

Application

Liquid Storage Tank

River Course Reservoir

Sewage

FAQ

Q1: Does the ultrasonic liquid level sensor need to be in contact with the liquid? ❯

No. Ultrasonic liquid level sensors use non-contact measurement. They are installed above the liquid and calculate the liquid level height by transmitting and receiving ultrasonic signals, avoiding problems such as corrosion, scaling, clogging, and high maintenance costs associated with sensors in contact with the liquid.

Q2: Will surface fluctuations or slight ripples affect the measurement accuracy of the ultrasonic liquid level sensor? ❯

The impact is minimal within the normal fluctuation range. Most ultrasonic liquid level sensors have built-in filtering and averaging algorithms that can effectively suppress interference caused by surface fluctuations. However, if the liquid surface is violently turbulent, heavily foaming, or contains a large amount of steam, the measurement stability may be affected, and the installation location and measurement range need to be carefully selected.

Q3: Is the ultrasonic liquid level sensor suitable for low liquid levels or shallow water measurements? ❯

It is suitable within a certain range, but the blind zone issue needs to be considered. Each ultrasonic liquid level sensor has a minimum measurement distance (blind zone). If the liquid level is below the blind zone, accurate measurement is not possible. Therefore, in shallow water or small container applications, a model with a smaller blind zone should be selected.

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Ultrasonic Level Sensor for Water/Liquid, 4-20mA

Feature

Dimension (Unit: mm)

Wiring Diagram

Installation Method

Liquid Storage Tank

River Course Reservoir

Sewage

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