LoRaWAN Distance & Fill Level Sensors
Implement Smart Waste processes to improve resource management and occupant comfort. Or effectively monitor industrial assets with Boiler and Tank fill-level monitoring.
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Milesight EM41X-RDL Radar Distance LoRaWAN Sensor
- IP68 Rated
- Up to 12m Range with 8 Degrees Narrow Beam
- Accurate Detection with Millimeter Wave Radar
- Battery up to 7 Years
Product Description & Topology
The Milesight EM41x-RDL is a non-contact Radar Distance/Level Sensor that adopts Millimeter Wave Radar technology. By measuring millimeter-wave signals at higher frequencies, it provides more stable performance over longer distances, and is less affected by environmental conditions. It can detect the distance between the sensor and liquid of various types, unaffected by temperature, dust, condensate etc. With IP68 waterproof and sealed enclosure, it can withstand the worst environment, while maintaining the measurement accuracy, and does not require routine maintenance. It also complies with ATEX(Zone 0) standards and offers excellent resistance to corrosion and wear. Milesight offers LoRaWAN® version and Cellular version to meet different communication needs. The LoRaWAN® version can be integrated with Milesight LoRaWAN® gateway and Milesight Development Platform, enabling remote and visual management of all sensor data. The Cellular version supports multiple application modes to be compatible with IoT platforms. EM41x-RDL can used in sewers, rivers, impounding reservoir, storage tanks and high-salt mist environments (including seawater, high-concentration brine), and other locations that require to measure distance and level.
Features
- 8° Radar beam angle can be focused on the target fluid, enabling accurate measurement of liquid level
- Wide measuring range of 0.3m to 12m with small blind zone
- Not affected by dust, condensate, temperature, acoustic noise, etc
- Non- invasive liquid level monitoring, can detect hazardous or non-hazardous liquids
- External antenna or internal antenna versions are optional for various applications
- Built-in 3-axis accelerometer sensor to monitor device tilt status
- Support to check radar-echo curve and one-click diagnostic to calibrate the distance, ensuring the accurate measurement under different environments
- Support blind zone alarm when the ranging results are within the blind zone
- Adopt PVDF material, offering excellent corrosion resistance, wear resistance and compressive strength for harsh environments
- IP68 waterproof design, resistant in fresh water to a maximum depth of 1m for up to 48 hours
- Supports ATEX Zone 0, and is suitable for special requirements for the performance of the product. Ex marking as below: Ex ia IIC T4 Ga (EM411-RDL Only)
- Thread design for common tank installation without extra accessories needed
- Store historical records locally and support retransmission to prevent data loss
- Easy configuration via NFC and Bluetooth
- Support management and OTA upgrade via Milesight Development Platform
How do LoRaWAN Devices Integrate?
We’re here to help you get LoRaWAN Data into your BMS Platform the way you want it: via BACnet/IP, Modbus, or MQTT through Chirpstack
Benefits of LoRaWAN for Smart Building and BMS Integrations:
Strong interoperability across diverse IoT devices and platforms
Secure, bi-directional communication suitable for building automation use cases
Flexible integration with BMS/MSI platforms for real-time monitoring and analytics
Scalable architecture that grows with building needs
Ideal for condition-based monitoring (air quality, occupancy, energy, leak detection, etc.)
Long-range coverage for hard-to-reach and large areas
Low power consumption, enabling multi-year battery life for sensors
Cost-effective deployment with minimal infrastructure
Easy retrofitting without pulling cables or disrupting operations
High device density for large-scale sensor networks
Benefits of LoRaWAN Distance & Fill Level Monitoring
Supports sustainability goals by reducing unnecessary collections and emissions
Improves occupant experience in offices, campuses, and public spaces
Prevents overflow and hygiene issues with real-time fill level alerts
Reduces operational costs through efficient route and schedule planning
Optimizes waste collection by servicing bins only when needed
Integrates seamlessly with BMS/MSI platforms for dashboards, alerts, and workflows
Works in hard-to-reach locations such as basements, plant rooms, and outdoor areas
Long battery life with minimal maintenance requirements
Scales easily across buildings and campuses with minimal infrastructure
Provides actionable analytics for usage trends and capacity planning
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LoRaWAN Site Survey Test Kit
A Site Survey should be the First Step in every LoRaWAN project
Our specially designed LoRaWAN Survey Kit allows you to test suitability of LoRaWAN solutions at any site you visit with fast, accurate readings and data insights. Now available in Compact Backpack for convenience.
LoRaWAN Integration Training and Project Consultancy
LoRaWAN 1-Day Training in Niagara 4/BMS Deployment
1-Day Masterclass for LoRaWAN System Integrators
Enhance your LoRaWAN knowledge in key areas of the solution, and gather understanding step by step by exploring the different integration options into a Tridium Niagara 4 or other BMS.
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