LoRaWAN Industrial Ultrasonic Liquid Level Sensor (ULR20)

Non-Contact Liquid Level Monitoring for Harsh Environments

The Kibitron ULR20 Ultrasonic Liquid Level Sensor provides reliable, non-contact liquid measurement for industrial and hazardous applications. Using advanced ultrasonic technology with built-in temperature compensation, the ULR20 can detect liquid levels through container walls without drilling holes or exposing operators to harmful substances.

This non-invasive design makes it ideal for monitoring toxic chemicals, strong acids, strong alkalis, and pure liquids in high-pressure, sealed, or safety-critical containers. With a valid measurement range of 20 mm to 2,000 mm and accuracy of ±(5 mm + 0.5% of reading), it ensures precision in even the most demanding environments.

The ULR20 transmits data over LoRaWAN® networks to the Kibitron platform for real-time monitoring, alerts, and analytics. Pre-provisioned for fast deployment, the device supports Bluetooth v5.1 configuration, OTA firmware updates, and remote management, making it easy to install and maintain. Powered by a long-life 8500 mAh Li-SOCl₂ battery, it delivers up to 5 years of operation with ultra-low power consumption.

Note:
Due to shipping restrictions, ultrasonic coupling paste and epoxy AB glue are not included in the standard package. These materials should be purchased locally to ensure proper installation and sensor performance.

Key Features

• Non-Contact Measurement – Safely monitors liquid levels without opening containers.
• Industrial Versatility – Suitable for toxic, corrosive, and high-temperature liquids in sealed systems.
• High Accuracy – ±(5 mm + 0.5% of measured value), range: 20 mm – 2,000 mm.
• LoRaWAN Connectivity – Long-range, low-power wireless communication (v1.0.3 Class A).
• Rugged Design – IP66 waterproof enclosure for indoor and outdoor use.
• Long-Term Power – 8500 mAh Li-SOCl₂ battery with up to 5 years life.
• Easy Setup – Pre-provisioned in Kibitron cloud for quick claiming and activation.
• Smart Configuration – Supports Bluetooth v5.1, AT commands, and OTA firmware updates.

Technical Specifications

• Measurement Range: 20 mm – 2,000 mm
• Accuracy: ±(5 mm + 0.5% of measured value)
• Cable Length: 25 cm
• Battery: 8500 mAh Li-SOCl₂ (non-rechargeable), up to 5 years
• Operating Temperature: –40 °C to +85 °C
• Enclosure: IP66 industrial-grade waterproof housing
• LoRaWAN Specs:
  • Version: v1.0.3, Class A
  • Frequency Bands: CN470, EU433, KR920, US915, EU868, AS923, AU915, IN865
  • RF Output: +22 dBm max
  • RX Sensitivity: down to –139 dBm
• Power Consumption:
  • Sleep Mode: 5 µA @ 3.3 V
  • LoRa Transmit: 125 mA @ 20 dBm, 82 mA @ 14 dBm

Applications

• Industrial chemical storage monitoring
• High-pressure and sealed container level measurement
• Wastewater and sewer liquid level monitoring
• Tank monitoring in harsh or hazardous environments
• Remote process monitoring and automation

Please Note: All Kibitron LoRaWAN sensors require a LoRaWAN gateway and an active Kibitron software subscription to operate. These devices are not compatible with our RF-based gateways.

For the best experience, we recommend using our pre-provisioned LoRaWAN gateways, which arrive fully configured to communicate with the Kibitron platform.
If you need help selecting the right gateway or confirming compatibility, please contact our support team.
NB-IoT/LTE-M versions are also available for cellular applications.