Milesight EM500-SWL is designed for measuring liquid levels in harsh environments. M500-SWL features a long-lasting battery life of up to 10 years, an IP67 UV-resistant and waterproof enclosure, and can be easily configured via NFC. It offers a stainless probe with corrosion resistance and a customizable measuring range up to 200m. EM500-SWL is widely used for applications like tank level monitoring, river level monitoring, etc.