Milesight Multifunctional Distance Sensor EM400‑MUD‑N03GL – PN: B045‑2 – NB‑IoT
121,90 €excl. 19% VAT
plus Shipping Costs
Milesight Ultrasonic Distance Sensor EM400-UDL-868M – PN: W050 Pro
The Milesight EM400-UDL W050 Pro is a non-contact ultrasonic distance sensor designed for high-accuracy level measurement. With a range of 30 to 500 cm, IP67 housing, and up to 10 years of battery life, it is ideal for outdoor applications like water tank monitoring, fluid level sensing, and smart city infrastructure.
448,90 €
excl. 19% VAT plus Shipping Costs
1 in stock
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Product Description
Technical Details
The Milesight EM400-UDL W050 Pro is an industrial-grade ultrasonic distance sensor engineered for precise level measurement in outdoor and demanding environments. It provides non-contact detection of distances from 30 to 500 cm, with a measurement accuracy of ±1% FS and 1 mm resolution.
Its rugged IP67-rated enclosure made of ABS+PC (UL94 V0) ensures excellent protection against water, dust, and harsh conditions. The integrated NTC temperature sensor enhances safety by enabling burn detection alarms. Additionally, a 3-axis accelerometer helps monitor device tilt status.
The EM400-UDL offers support for two communication technologies:
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LoRaWAN® for long-range, low-power wide-area networking (up to 15 km line of sight)
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NB-IoT/Cat-M with optional GNSS for location tracking and IoT platform integration
Powered by two 9000 mAh batteries, the sensor supports up to 10 years of operation (depending on the reporting interval and mode). It can be configured via NFC using a mobile app and supports features like threshold alarms, calibration, and cumulative reporting (NB only).
Key Applications:
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Liquid level monitoring in tanks, reservoirs, wells
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Fill level detection in containers
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Static water surface measurement
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Infrastructure & smart city deployments
| Technical Specification | Details |
|---|---|
| Model | Milesight EM400-UDL-868M (W050 Pro) |
| 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 (915 MHz), 19 dBm (470 MHz) |
| Sensitivity | -137 dBm @300 bps |
| Mode | OTAA / ABP Class A |
| NB-IoT / Cat-M Version | |
| Cellular Bands | 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), 1.8 V |
| Application Mode | TCP / UDP / MQTT / AWS |
| Measurement – Distance | |
| Version | Pro Version |
| Range | W050: 30 to 500 cm |
| Accuracy | ±1% FS (‑30 °C to +65 °C) |
| Resolution | 1 mm |
| Device Position | |
| Status | Normal / Tilt |
| Temperature Sensing | |
| Range | -40 °C to +125 °C |
| Resolution | 0.1 °C |
| GNSS (NB-IoT/Cat-M Only) | |
| Parameters | Longitude / Latitude |
| Resolution | 0.000001 |
| Device Features | |
| LED Indicator | 1 × Internal |
| Button | 1 × Power / Reset (Internal) |
| Power Control | NFC, Internal Button |
| Configuration | Mobile App (NFC) |
| Advanced Features | Cumulative Report (NB), Calibration, Threshold Alarm, Tilt & Distance Switch |
| Physical Characteristics | |
| Power Supply | 2 × 9000 mAh ER26500 Li-SOCL₂ Batteries |
| Battery Life | >10 years (LoRaWAN, 10-min interval, 25 °C) NB-IoT/Cat-M: ~10 years (TCP/UDP), ~5 years (MQTT/AWS) |
| Operating Temperature | -30 °C to +70 °C |
| Humidity | ≤95% RH (non-condensing) |
| Ingress Protection | IP67 |
| Dimensions | 118 × 65 × 80 mm |
| Housing | ABS + PC (UL94 V0) |
| Color | Gray (W050/W100) |
| Weight | 246.6 g (with batteries) |
| Installation | |
| Mounting | Flat surfaces using screws |
| Certifications | |
| Regulatory | CE, FCC |
| Environmental | RoHS |
