Radar Distance/Level Sensor - EM410-RDL

The EM410-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. The device features an 8° radar beam angle that can be focused on target fluids, enabling accurate measurement of liquid levels without invasive installation.

Features

Millimeter Wave Radar Technology: Operates at 60GHz frequency for precise measurements
Wide Measuring Range: 0.3m to 12m detection distance with small blind zone
High Accuracy: Up to ±2mm accuracy with 1mm resolution
Non-invasive Monitoring: Can detect hazardous or non-hazardous liquids without contact
Environmental Resistance: Not affected by dust, condensate, temperature, or acoustic noise
Built-in 3-Axis Accelerometer: Monitors device tilt status for optimal positioning
Dual Antenna Options: Available with internal or external antenna versions for various applications
Radar-Echo Curve Analysis: Supports one-click diagnostic to calibrate distance for accurate measurement
PVDF Material Construction: Excellent corrosion resistance, wear resistance, and compressive strength for harsh environments
IP68 Waterproof: Resistant in fresh water to maximum depth of 1m for up to 48 hours
Thread Design: Easy tank installation without extra accessories
Local Data Storage: Stores historical records locally with retransmission support to prevent data loss
Easy Configuration: Via NFC and Bluetooth connectivity
OTA Updates: Remote firmware upgrade capability via Milesight Development Platform

Technical Specifications

Measurement

Technology: Millimeter Wave Radar
Radar Frequency: 60GHz
Detection Angle: 8°
Detection Distance: 0.3m ~ 12m
Accuracy: Up to ±2mm
Resolution: 1mm
Target: Liquids or smooth surface solids

LoRaWAN Connectivity

Frequency Bands: CN470/IN865/EU868/RU864/US915/AU915/KR920/AS923-1&2&3&4
Tx Power: 16 dBm (868 MHz) / 20 dBm (915 MHz) / 19 dBm (470 MHz)
Sensitivity: -137 dBm @ 300bps
Mode: OTAA/ABP
Class: Class A
Antenna: Internal or external antenna options (50 Ω SMB Male Connector for external)

Sensors

Distance/Level
Battery
Temperature
3-axis Accelerometer (tilt detection)

Physical Characteristics

Dimensions: 87 x 87 x 101 mm
Enclosure Rating: IP68
Operating Temperature: -40°C to 70°C

Use Cases

Liquid level monitoring in industrial tanks
Water level measurement in reservoirs and wells
Chemical storage tank monitoring
Wastewater treatment facilities
Agricultural irrigation systems
Fuel tank level monitoring
Hazardous liquid detection and monitoring

Thinger.io Integration

The EM410-RDL integrates seamlessly with Thinger.io through LoRaWAN connectivity, enabling remote monitoring and management of distance and level measurements.

Requirements

A LoRaWAN server is required to communicate the EM410-RDL into Thinger.io, some options are:

Alongside, the corresponding plugin for the selected LoRaWAN server needs to be installed in your Thinger.io instance.

Get Started

Installation

Look for the plugin in the Thinger.io Plugin Store and install it in your Thinger.io instance. Once the plugin is installed a new Product will be created for this device.

Configuration

The Product is already preconfigured, check that the auto provision prefix matches the one selected in your LoRaWAN server plugin in Thinger.io, or change it to your desire.

Usage

Start sending uplinks for autoprovisioning devices and buckets. This product also provides a predefined dashboard and downlinks.

Additional Resources

Milesight resources can be found at: