The Lufft WS500-UMB is a product from the "WS" compact weather station family. This compact meteorological station is equipped with a temperature, relative humidity, wind direction, wind speed and air pressure measurement. The integrated ultrasonic wind sensor measures the wind direction and wind speed without moving parts. Optionally, one external temperature sensor or rain sensor can be connected. As standard, the WS weather stations have a digital output with, among other things, Modbus RTU.