EM500-UDL is a LoRaWAN® ultrasonic distance/level sensor for non-contact liquid or solid surface measurement. Delivers ±1% accuracy over 0.3-10m range with 10-year battery life on 19000mAh cell. Solves level monitoring in water tanks, reservoirs, and outdoor environments without wiring or maintenance. IP67-rated for harsh conditions.
Product Features
• Long-Range Wireless: LoRaWAN® 10km line-of-sight, global bands CN470/EU868/US915/AU915/KR920/AS923
• Decade-Long Battery: 19000mAh replaceable battery, up to 10-year lifespan (10-min interval)
• Precision Measurement: 0.3-10m range, ±1% FS accuracy, 1mm resolution, multiple beam patterns (C050/C100/W050/W100)
• Harsh Environment Ready: IP67 enclosure, -30°C~+65°C operating range, ABS+PC housing
• Zero-Touch Configuration: NFC + mobile app setup, local data storage (1000 entries), OTA management
Purchase Ways
| Parameter | C050/C100 (Standard Type) | W050/W100 (Wide Beam Type) |
|---|---|---|
| Measuring Range | 0.25-5m (C050) / 0.25-10m (C100) | 0.3-5m (W050) / 0.5-10m (W100) |
| Accuracy | ±(1+0.3%×S) cm, S=Distance | ±1% FS |
| Beam Characteristics | Narrow Beam, Strong Anti-interference | Wide Beam, Large Coverage Area |
| Operating Temperature | -15°C ~ +60°C | -30°C ~ +65°C |
| Housing Color | Black-Gray | Gray |
| Weight | 362.7g | 370.4g |
| Shared Core Parameters | |
|---|---|
| Parameter | Specification |
| Communication | LoRaWAN® + Milesight D2D, OTAA/ABP Class A, -137dBm Sensitivity |
| Battery | 19000mAh ER34615, 10-Year Battery Life (Reporting Interval: 10 mins, 25°C) |
| Protection & Features | IP67, 1mm Resolution, NFC Configuration, 1000 Local Storage Entries |
| Installation & Dimension | Pole/Wall/DIN Rail Mounting, 156.1×71×69.5mm |
| Certification | CE, FCC, ISED, Telec, LoRaWAN® Certified |
Application scenarios
• Water Tank Monitoring — Real-time level tracking in municipal and industrial water storage tanks, eliminating manual gauge reading and overflow risks
• Wastewater Management — Sewer and drainage level measurement in harsh, humid environments where wired sensors fail
• Irrigation Systems — Reservoir and canal level monitoring for agricultural water management across large rural areas
• Fuel & Chemical Storage — Non-contact level detection in diesel tanks and chemical containers, compatible with standard LoRaWAN® networks for centralized inventory management
Application Case
Municipal disaster prevention faces three critical gaps: short-range wireless cannot cover expansive urban and forest areas, outdoor weather and temperature changes cause device deployment failures and maintenance complexity, and delayed alerts from inadequate monitoring lead to severe economic and environmental damage when floods or fires strike.
• WTS506 IoT Weather Station — Collects temperature, humidity, wind speed, wind direction, barometric pressure, and rainfall for comprehensive weather monitoring and urban risk assessment
• EM500-UDL Ultrasonic Distance/Level Sensor — Monitors water levels in rivers and reservoirs with ±1% accuracy, 0.3-10m range, and 10-year battery life; transmits flood warnings before critical levels are reached
• EM500-CO₂ Carbon Dioxide Sensor — Deployed on radio towers throughout the city, continuously monitors temperature and humidity to detect critical parameters indicating forest fire risk
• UG67 Outdoor LoRaWAN® Gateway — Aggregates real-time data from all sensors across the city with long-range, low-power connectivity; no cabling infrastructure required
• IoT Cloud Platform — Centralized data visualization, threshold alerts, and predictive analytics enabling municipal employees to respond before disasters escalate
Result: Timely warnings prevent forest fires and floods, protecting environmental resources and ecological safety; real-time monitoring enables data-driven decision-making; LoRaWAN® durability allows rapid network expansion without sacrificing service quality while reducing operating costs.
EM500-SWL
Submersible Water Level Sensor
EM500-SMTC
EM500-PP
