["The Milesight EM500-UDL-868M-W050 is a robust ultrasonic distance sensor with LoRaWAN® wireless technology, ideal for non-contact measurement of distances up to 5 meters. Thanks to the IP67 protection class, the device is well protected against dust and water, making it suitable for a wide range of industrial and environmental applications. Suitable for level measurements in small to medium-sized vessels, liquid level monitoring and other industrial applications requiring precise, non-contact distance measurements", "Non-contact ultrasonic distance measurement", "Measuring range up to 5 meters", "LoRaWAN® 1.0.2 / 1.0.3 communication (868 MHz)", "IP67 protection class for dust and waterproof operation", "Long battery life for continuous operation", "Easy integration into IoT networks and systems", "Model: EM500-UDL-868M-W050", "Measuring principle: ultrasound", "Measuring range: up to 5 meters", "Accuracy: ±1% of the measuring distance", "Communication: LoRaWAN® 1.0.2 / 1.0.3, EU868 MHz", "Protection class: IP67", "Operating temperature: -20°C to +60°C", "Power supply: 2 × 3.6V ER14505 lithium batteries (replaceable)", "Battery life: Up to 10 years, depending on use and environment"]