Lufft WS301 Smart Weather Sensor

Lufft WS301 Smart Weather Sensor

Product Number: 8374.U01

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The WS301-UMB is a compact all-in-one weather sensor for measurement of temperature, relative humidity, radiation (spectral flat Class C, K&Z CMP3) and air pressure. It is part of the WS product family of professional intelligent measurement transducers with a digital interface for environmental applications. It has an integrated design with ventilated radiation protection. One external temperature or rain sensor is connectable.


  • Agriculture
  • Aviation
  • Meteorology Observations
  • Meteorology Research
  • Road Weather
  • Wind Energy


All-in-one housing concept & easy installation

All-in-one housing concept of a compact weather sensor combining several measurement parameters in one housing with only a single cable connection.

Maintenance-free operation

Maintenance free operation as there are no moving parts that can wear out.

Flexible interfaces and telegrams

SDI-12 and RS485 with supported protocols UMB-Binary, UMB-ASCII, Modbus-RTU, Modbus-ASCII, and XDR.

Spectrally flat Class C Pyranometer

Aspirated radiation shield