The Ijinus LNR06V4 and Ijinus LNR06V4‑LE are stand‑alone, battery‑powered radar level loggers designed for accurate and reliable water level monitoring in outdoor and remote water utility environments. Each unit integrates a non‑contact radar level sensor, data logger, long‑life battery, and communication modem into a single compact enclosure, enabling long‑term autonomous operation.
Both versions use 60 GHz radar imaging technology to measure water level without contact with the water surface. This makes them particularly suitable for challenging applications such as river monitoring, stormwater basins, storage tanks, and sewer networks, where debris, turbulence, or variable conditions can affect contact‑based sensors.
The loggers support wireless radio configuration, allowing safe setup and programming without physical interaction with the device. Measurement data is stored internally and transmitted via local radio communication or optional cellular or LoRaWAN networks, depending on the selected configuration. Built‑in conversion tables allow water level data to be directly converted into height, flow rate, or volume, supporting operational monitoring and analysis.
The key difference between the two versions is functional scope:
The LNR06V4 is the standard version, offering a fully autonomous radar level monitoring solution with no external input or output connections.
The LNR06V4‑LE is an alternative version designed for the same applications and performance but positioned as a streamlined option within the LNR06V4 range, maintaining the same radar measurement, logging, and communication capabilities.
Both systems are purpose‑built as dedicated radar level loggers, with no physical connectors, ensuring simplicity, robustness, and reliability in permanent field installations.
• Stand‑alone radar level logger with integrated data logging and communications
• Non‑contact 60 GHz radar level measurement
• Measuring range from 0.15 m to 10 m
• High resolution with millimetre‑level measurement accuracy
• Large internal memory capacity (up to 500,000 measurements)
• Battery‑powered for fully autonomous operation
• Long‑life 3.6 V lithium battery (34 Ah)
• Wireless radio configuration using Wiji protocol
• Communication options: local radio, 2G, LTE‑M, NB‑IoT, or LoRaWAN
• Interchangeable communication cards for flexible deployment
• Built‑in conversion tables for height, flow rate, and volume
• IP68 ingress protection for outdoor and underground installations
• Designed for flood monitoring, stormwater overflows, storage tanks, and sanitation networks
• ATEX Zone 2 certified for hazardous environments
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