Milesight EM500-UDL LoRaWAN® Ultrasonic Distance/Level Sensor (EU868)

Milesight EM500-UDL LoRaWAN® Ultrasonic Distance/Level Sensor (EU868)

• Accurate Non-Contact Detection with Ultrasonic Waves
• Wide Measuring Range and Multiple Probing Options
• Exceptional IP67 Rated Performance and UV Resistant
• 10 Years Long Battery Life
• LoRaWAN® Wireless Deployment
• Remote Management via Milesight IoT Cloud
• Easy NFC Configuration

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Product Description

The EM500-UDL Ultrasonic Distance/Level Sensor is a highly advanced, robust sensor engineered by Milesight to provide precise and reliable measurements in industrial and environmental applications. This sensor leverages ultrasonic wave technology for non-contact detection, making it exceptionally suitable for a wide range of liquids, including corrosive chemicals. It offers a significant advantage in industries where precise distance or level measurement is critical, such as in the plastic, petroleum, and fertilizer sectors.

One of the standout features of the EM500-UDL is its wide measuring range of 0.25m to 10m, coupled with various probing options to accommodate different scenarios. This flexibility makes it an invaluable tool in environments with containers of various sizes, including those with small openings. Additionally, the sensor's accuracy of up to ±1% FS ensures high precision in all measurements.

Designed to withstand harsh environments, the EM500-UDL boasts an exceptional IP67 rating, ensuring its performance and durability in outdoor settings and industrial applications. It is also UV-resistant, further enhancing its suitability for outdoor use. The sensor's long battery life of up to 10 years is a notable feature, significantly reducing maintenance frequency and overall operational costs.

The EM500-UDL incorporates LoRaWAN® technology for secure and efficient wireless data transmission. This feature simplifies the installation process and ensures the integrity of transmitted data. The sensor is easily configurable via NFC, allowing quick setup and adjustments using a mobile phone or PC. Additionally, it is compatible with the Milesight IoT Cloud, offering features like a data visualization dashboard, automatic triggers, regular reports, and real-time alerts, accessible through both Android and iOS apps.

Product Features

  • Ultrasonic Wave Technology: Non-contact detection suitable for various liquids, including corrosive chemicals.
  • Wide Measuring Range: 0.25m to 10m, with multiple probing options for diverse applications.
  • High Precision: Accuracy of up to ±1% FS.
  • IP67 Rated and UV Resistant: Ideal for harsh environmental and industrial settings.
  • Extended Battery Life: Up to 10 years, reducing maintenance needs.
  • LoRaWAN® Wireless Deployment: Secure and efficient data transmission.
  • NFC Configuration: Easy setup and adjustments via mobile or PC.
  • Cloud Data Management: Integration with Milesight IoT Cloud for comprehensive data management.
  • Versatile Installation Options: Suitable for pole, wall, or DIN rail mounting.
  • Operational Temperature Range: W050/W100/S050: -30°C to +65°C; C050/C100: -15°C to +60°C.

The EM500-UDL Ultrasonic Distance/Level Sensor is a powerful and versatile tool, ideal for industries that require precise and reliable measurements of distance or level in challenging environments.

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Wireless Transmission
Technology LoRaWAN ®
Frequency EU868
Tx Power 16dBm(868)
Sensitivity -137dBm @300bps
Mode OTAA/ABP Class A
Range & Accuracy W050: 0.3 - 5 m, ±1% FS
W100: 0.5 - 10 m, ±1% FS
S050: 0.3 - 5 m (Snow Version)
C050: 0.25 - 5 m, ± (1+0.3%*S) cm, S=distance
C100: 0.25 - 8 m, ± (1+0.3%*S) cm, S=distance
Resolution 1 mm
Power On & Off NFC, Power Button (Internal)
Configuration Mobile App(via NFC) or PC software(via USB Type-C)
Physical Characteristics
Power Supply 19000 mAh Li-SOCL2 battery (ER34615)
Battery Life 10 years (10 min interval)
Operating Temperature W050/W100/S050: -30°C to +65°C
C050/C100: -15°C to +60°C
Relative Humidity 0% to 80% (non-condensing)
Ingress Protection IP67
Dimension 156.1 × 71 × 69.5 mm (6.1 × 2.8 × 2.7 in)
Installation Pole, wall or DIN Rail Mounting
Regulatory CE, FCC, RoHS, LoRaWAN ® Certified
EMC EN 55032, EN 55035
EMS IEC 61000-4-2 Level 3, IEC 61000-4-3 Level 2, IEC 61000-4-8 Level 4
Radio Frequency FCC Part 15B, FCC Part 15.247, EN 300 330, EN 301 489-1/3, EN 300 220-1/2
Safety EN62368-1

Shipping Policy

We provide worldwide shipping using reliable tracked
shipping services.

Local Shipments within Cyprus

Shipments in Cyprus are performed usually with ACS Courrier
or AKIS Express. In some cases, we might deliver the products ourselves. A pick-up
option from our locations is also available.

International Shipments

International shipments are performed using Express Airway
Shipping Services. We are currently shipping orders with TNT Express and FedEX.
As soon as your shipment is dispatched you will receive the shipment confirmation
including the shipment tracking number which you can use to track your order
from the shipment provider website.

We dispatch orders within 1-3 workdays after the day of the
order placement. 

General Return Policy

We have a 30-day return policy, which means you have 30 days
after receiving your item to request a return.

To be eligible for a return, your item must be in the same
condition that you received it, unworn or unused, with tags, and in its
original packaging. You’ll also need the receipt or proof of purchase.

To start a return, you can contact us at If
your return is accepted, we’ll send you a return shipping label, as well as
instructions on how and where to send your package. Items sent back to us
without first requesting a return will not be accepted.

For any further information, help and support regarding the
shipping and/or return process you can contact us at:

  • Email:
  • Telephone: +357 22 282828