Ultrasonic liquid level sensor | non-contact measurement | 0–20 m | 4–20 mA / RS485 | IP68 | 1 mm | for liquids (water, wastewater, tanks)

Technical specifications

Type: ultrasonic level sensor
Application: liquid level measurement
Measuring range: 0 – 20 m
Accuracy: ±0.25% ~ 0.5%
Resolution: 1 mm
Output: 4–20 mA / RS485
Working pressure: standard (not for pressurized systems)
Operating temperature: -20 °C to +60 °C
Protection class: IP68
Class: industrial device
Application: liquids (water, wastewater, tanks, etc.)

Functions

Non-contact measurement (ultrasonic) - the sensor measures liquid level using ultrasonic pulses, therefore there is no direct contact with the liquid
High accuracy - accuracy up to ±0.25% allows the device to be used even in precise industrial systems
Wide measuring range - ability to measure up to 20 meters depth – suitable for both small and large tanks
Digital and analog output - 4–20 mA – standard industrial signal, RS485 – for integration with PLC, SCADA or other systems
High protection (IP68) - fully resistant to water and dust – suitable for harsh environmental conditions

Application

For household users: monitoring water tank levels, wells, rainwater tanks, garden and farm systems. Advantage: no need to immerse the sensor, easy maintenance, accurate measurement
For electricians: easy integration into automation systems, standard outputs (4–20 mA / RS485), reliable operation in harsh conditions, simple connection to PLC or controllers
For engineers / designers: water treatment equipment, wastewater systems, tank monitoring, industrial automation systems, SCADA / IoT solutions. Excellent choice when precise level measurement, remote monitoring, and reliability are required

Advantages

non-contact measurement (no wear)
wide measuring range – up to 20 m
high accuracy – up to ±0.25%
IP68 protection – suitable for harsh conditions
analog and digital output
easy system integration
minimal maintenance required

Disadvantages

may be sensitive to foam or vapors
requires correct installation height
does not work in vacuum or high-pressure systems
requires proper calibration for accuracy