The ultrasonic level sensor LNU06V4 has integrated batterry, logger and modem
You can connect external sensor, rain gauge ...Multi application level sensor with water height/flow rate integrationUltrasonic sensor for level and flow installed on channel, manhole sewers Water height sensors

LNU06V4 Battery powered level sensors with wireless communications

  • Measuring range of 0,3 … 6m (0.98 – 20ft)
  • Wireless setting and data download by radio (Wiji protocol) on-site
  • Communication : locally by radio + optional communication card 2G / LTE-M / NB-IoT
  • Inputs : 1x voltage (5V…30V), 2x Contacts 100Hz, 1x Modbus
  • Outputs : 1x power supply (internal battery or switch), 1x open drain, 1x Modbus
  • Memory : 500 000 measures
  • Lithium battery powered, low-power consumption
  • Rugged, compact, enclosure rating IP68 (1 bar / 30 days)
  • Conversion tables and formulas (water height, Flow, volume)

The LNU06V4 are our new versions of level sensors, particularly suitable for liquid measurement in harsh environment. They integrates a logger, a long life battery and communication options making it fully autonomous. Easy to use and install, the setting is done safely by radio without need of activation.

LNU06V4 description

The new V4 range of ultrasonic level sensors have been designed for use in the most demanding environments where robustness, water resistance and safety are essential. The ultrasonic sensors in this range are ideal for both short measurements campaigns and permanent installations. They offer many advantages including ease of installation. Position the LNU06V4 in its bracket and mounting plate and then configure it by radio

Water level sensor, communication by radio + 2G/4G (LTE-M / NB-IoT)

Measuring range

The sensors LNU06V4 typically measure from 0.3m up to 6 meters. Ultrasonic power can be adjusted to optimize measurement and autonomy

Wireless sensors configuration

Configuration of the sensors is done locally and safely by radio (RFID) using one of our programming kit to connect to PC or tablet. It includes the software Avelour 6

Sensors with communication options

Radio communication for your measurement campaigns, and SMS / GPRS / FTP / FTPS for remote management on or on your server

Ultra low-power sensors: autonomy of 6 years

Energy is integrated in the sensor : lithium batteries are replaceable and last more than 6 years for 1 measurement / 15min and 1 data sending per day + alerts



liste_arrow Instant radio connection of the devices neaby
liste_arrow Multi curves display of your data for analysis
liste_arrow Assisted and quick device configuration, summary
liste_arrow Intuitive interface adapts to connected sensor
liste_arrow Communication to many SCADA and FTP
liste_arrow Saving configurations as template

Easy configuration of the LNU06V4 with this radio connection kit


Ultrasonic level sensors LNU06V4 applications

  • Natural water& Waste water
  • Diagnostic of sewers network
  • Combined Sewers Overflow Monitoring
  • Discharges monitoring from waste water treatment plants
  • Flow paced sampling with Ijinus sensors
  • Flood warning and management
  • Tank level monitoring

Specifications of the ultrasonic sensor LNU06V4 :


LNU06V4 level sensors features

Measuring range 0,3 … 6m
Accuracy ± 0,2% of the measuring range
Data logger Integrated
500 000 measures
Radio access point, devices pairing Yes
Temperature range -40 …85°C
1x external power supply (5Vcc…30Vcc), 2x Contacts 100Hz, 1x Modbus
Outputs 1x power supply (internal battery or switch), 1x open drain, 1x Modbus
Communication locally by radio + optional communication card in option :
2G/4G (LTE-M / NB-IoT)
Radio / cellular antenna Internal or external radio antenna, external cellular antenna
Energy Pile : 3,6V / 34Ah
Configuration AVELOUR software part of the programming kit: MOC00001
Technologies Acoustic imaging / eKo algorithm / LAMY filtration
Certifications Atex : II 3 G
Ex ic ec IIB T4 Gc
Tamb : -20°C…+60°C

CE, FCC : SE6A002
IC : 10983A-A002-A0102

Logger Housing:

Housing PA12 filled with natural glass fibre
Antenna bolt and connector Inox A2 304
O-ring seal EPDM
Enclosure rating IP68 : IP68 : 1 month under 1 bar (only when an Ijinus mounting kit is used PN : H0T00053 or H0T00060)
dimensions Ø 74 x 197mm (without antenna)
Weight 520g
Dimension LNU06V4Dimensions of the LNU06V4


LNU06V4 downloads :






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