IoT Products

DUC3-L is our LoRaWAN IP68 Rated Corrosion Resistant Low Power Ultrasonic Distance and Level Sensor. It is designed to work in harsh environments and provide accurate measurements. Find out more at Ellenex.

Technical Specification


  • Range: 5,10 m

  • Accuracy: ±1 (typ.) %Span

    (combined linearity, hysteresis, repeatability)

  • Resolution: 1 mm

  • Sensor Minimum Distance: 0 ~ 20cm for 5m range, 0 ~ 50cm for 10m range

  • Reading-to-reading stability: 1mm in 1m (Typ)

  • Compensated Temperature: -10 ~ +60 °C


  • Power Supply: Built-in Replaceable Lithium Battery, External Power (option)

  • Rated Voltage: 3.6 V

  • Battery Lifetime: 100,000+ readings and 20,000+ transmission
    (With UDP protocol/ More than 10 years for most applications)

Physical Specification

  • Materials: Enclosure: POM, Sensor Head: Parylene coating applied to the surface of the Aluminium transducer

  • Weight: ~500 g

  • Protection Rate: IP68, UV protected


  • LoRaWAN® Version, Class: 1.0.2revB, Class A (Class C on request) 

  • LoRaWAN® Frequency Zone: AS923, EU868, US902-928, AU915-928 (other zones available on request)

  • LoRaWAN® Activation Type: OTA (default), ABP

  • Sampling Type: Periodic (default), Event triggered

  • Sampling Period: Configurable via downlink (default 4 hours)

  • Transmission Type: Per sample (default), Event triggered, Conditional

  • Parameter Configuration: Over-the-air via LoRaWAN® downlinks, Locally via wireless connectivity

  • Firmware Update: Locally via Wireless Connectivity, Over The Air


ISDN » W-Lan


Environment » Temperature Range » Industrial (-25°C / +65°C)