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Milesight EM400-UDL LoRaWAN NB-IoT Ultrasonic Distance Sensor

  • $459.00
  • Save $100
  • (Exc. GST)

  • Available in stock

  • $ We Ship from our stock in AU (Perth) with pickup option, and Prices are Exc. GST
  • $ We Offer Quantity Discounts for Large Orders 10+ qty (Request for Quote)
  • $ We Accept Purchase Orders & Net 30 Payment for Eligible Accounts

    Milesight EM400-UDL LoRaWAN NB-IoT Ultrasonic Distance Sensor

    EM400-UDL, as the versatile product among EM400 series, offering three versions - Standard, Pro, and Snow Level with varying detection range, resolution, and accuracy, is designed to cater to the demands of professional applications. Equipped with prolonged battery life and robust IP67 rated enclosure, EM400-UDL is the perfect fit for professional and demanding applications. Additionally, its availability in both LoRaWAN® and NB-loT versions allows for a variety of application scenarios.

    • Non-Contact Distance Measurement
    • Great Flexibility with Multiple Versions
    • Value-added Temperature and Tilt Monitoring
    • Various Professional Applications
    • Long-Lasting 10 Years Battery Life
    • Rugged and Reliable IP67 Rated Enclosure
    • Positioning Function Enabled by GNSS Modules (NB-loT version)


    LoRaWAN® Version

    • Wide Area Coverage: Data transmission range up to 2 km in urban areas and 15 km in rural areas
    • Power Saving: Low battery consumption enabled by LoRaWAN® technology
    • More Deployment Freedom: Deployment options based on both private and public network facilities

    NB-IoT Version

    • Stable Transmission: Reliable data transmission via cellular base stations
    • Positioning Capability: Equipped with GNSS module to help track your assets
    • Low Deployment Cost: Low deployment cost due to the presence of existing cellular base stations
    • Cumulative Reporting: Accumulate up to 24 data packets in each report, saving transmission cost and power consumption

    Non-Contact Distance Measurement

    Leveraging ultrasonic distance detection, EM400-UDL ensures a stable and reliable performance while detecting different solid or liquid mediums. Featuring non-contact distance measurement, the probe of EM400-UDL will remain unaffected or contaminated by the medium detected, and deliver highly accurate measurement.

    Great Flexibility with Multiple Versions

    EM400-UDL comes in three versions Standard, Pro and Snow Level versions with different probes optional. With 5 probes at choice, EM400-UDL provides great flexibility to satisfy various demands for professional applications.

    Value-added Temperature and Tilt Monitoring

    The EM400-UDL is equipped with a built-in 3-axis accelerometer which can be used to monitor the device tilt status and alert the users whether the device is well positioned.

    With built-in NTC thermistor, EM400-UDL can monitor the temperature and send alert in time if the temperature changes sharply which may indicate combustion.

    Various Professional Applications

    EM400-UDL is an excellent choice for a wide range of applications. Whether for industrial settings or in cities, EM400-UDL is dependable to provide accurate and reliable data to optimize operations and improve efficiency.

    • Boiler Expansion Monitoring
    • Tank Fill Level Monitoring
    • Barn Fill Level Monitoring
    • Flood Monitoring
    • Sewer Water Level Monitoring

    Rugged and Reliable IP67 Rated Enclosure

    IP67 rated enclosure ensures EM400-UDL is protected against dust, water, and other environmental hazards, enabling it to withstand harsh environment.

    EM400-UDL also features a conformal coating on its PCBA, which provides an extra layer of protection against moisture, dust, and other contaminants that can damage electronic components.

    These two features extend the lifespan of the EM400-UDL and ensure that it continues to function reliably in harsh conditions.

    Ultra-long 10 Years Battery Life

    EM400-UDL is equipped with high-capacity batteries that can work for over 10 years, offering a long-lasting and reliable performance. Easily replaceable batteries making the installation and maintenance a breeze. This also helps to reduce wiring costs, ensuring that customers can easily install the device and get started with monitoring their garbage bins.

    LoRaWAN® Based

    • Penetrating Signals: data transmission range up to 2 km in urban areas and 15 km in rural areas
    • High Compatibility: compliant with standard LoRaWAN® gateways and network servers


    Wireless Transmission LoRaWAN® Version Frequency CN470/IN865/RU864/EU868/US915/AU915/KR920/AS923-1&2&3&4
    Tx Power 16 dBm (868 MHz)/20 dBm (915MHz)/19 dBm (470MHz)
    Sensitivity -137dBm @300bps
    Mode OTAA/ABP Class A
    NB-IoT/Cat M Version Cellular Band Cat M1: B1/B2/B3/B4/B5/B8/B12/B13/B18/B19/B20/B25/B26/B27/B28/B66/B85
    Cat NB2: B1/B2/B3/B4/B5/B8/ B12/B13/B18/B19/B20/B25/B28/B66/B71/B85
    SIM Slot 1 (Micro SIM-3FF)
    Application Mode TCP/UDP/MQTT/AWS/Milesight IoT Cloud1
    Model Standard Version Pro Version Snow Version
    Measurement Distance Range C050: 25 ~ 500 cm
    C100: 25 ~ 1000 cm
    W050: 30 ~ 500 cm
    W100: 50 ~ 1000 cm
    S050: 50 ~ 500 cm
    Accuracy ± (1+0.3%*S) cm2, S=distance(- 15°C ~ 60°C) ±1% FS(- 30°C ~ 65°C) ±1% FS(- 30°C ~ 65°C)
    Resolution 1 mm
    Device Position Status Normal/Tilt
    Temperature Range -40 ~ 125°C
    Resolution 0.1°C
    GNSS Positioning (NB-IoT/Cat M Version Only) Parameters Longitude/Latitude
    Resolution 0.000001
    Physical Characteristics Power Supply 2 x 9000 mAh ER26500 Li-SOCL2 Batteries
    Battery Life3 LoRaWAN® Version: > 10 years (10-min Interval, 25°C)
    NB-IoT/Cat M Version: TCP/UDP—Around 10 Years, MQTT/AWS—Around 5 Years (4 Times Report per Day, per Report Includes 12 Packages with 30-min Collection Interval, 25°C)4
    Operating Temperature – 30°C ~ 70°C
    Relative Humidity ≤95% (non-condensing)
    Ingress Protection IP67
    Dimension 118 × 65 × 80 mm
    Material ABS + PC (Flame Retardant)
    Color Black gray (C050/C100), Gray (W050/W100/S050)
    Installation On the Flat Surfaces with Screws



    User Guide

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