The Milesight EM411-RDL is the ATEX version of the EM410-RDL radar level sensor. It carries Zone 0 approval (Ex ia IIC T4 Ga), so it can sit in the space above fuels, solvents and other hazardous liquids.
Why pick it
- 60 GHz radar with an 8° beam: 0.3 to 12 m, up to ±2 mm on a still surface.
- PVDF body rated IP68, resistant to corrosion and wear, with G 1½ or NPT 1½ thread or wall bracket.
- Battery powered and wireless, so no cabling into the hazardous area.
LoRaWAN only, about 7 years on one 19000 mAh cell at a 15-minute collection interval. Operating range is -20 to +60 °C. Configured over NFC or Bluetooth.
Works with any standard LoRaWAN gateway and network server, such as the Milesight UG65 indoors or the UG67 outdoors, with alerts and dashboards on IoT Factory.



















