Lufft WS401 Multi-Parameter Weather Sensor

The Lufft WS401 Multi-Parameter Weather Sensor simultaneously measures air temperature, humidity, pressure & precipitation in a compact platform with ventilated housing.

Features

  • Integrated tipping bucket allows a 0.2mm or a 0.5mm resolution of rainfall
  • Easily mounts to 2" diameter pipe with integrated bracket mount & U-bolts
  • SDI-12 output for integration with NexSens and other data loggers
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ImagePart#Product DescriptionPriceStockOrder
Lufft WS401 Multi-Parameter Weather Sensor8377.U01 WS401 multi-parameter weather sensor, air temperature, humidity, pressure & precipitation, 10m cable
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Overview
The Lufft WS401 Multi-Parameter Weather Sensor offers a cost-effective, compact alternative for the acquisition of a variety of measurement parameters on land- and buoy-based weather stations. Depending on the model, each sensor will measure a different combination of weather parameters to meet a wide variety of applications.

Air Temperature & Humidity
Temperature is measured using a highly accurate NTC-resistor, while humidity is measured using a capacitive humidity sensor. Both sensors are located in a ventilated radiation shield to reduce the effects of solar radiation.

Pressure
Absolute air pressure is measured using a built-in MEMS sensor. The relative air pressure referenced to sea level is calculated using the barometric formula with the aid of the local altitude, which is user-configurable on the equipment.

Precipitation
Precipitation is measured using an integrated tipping bucket rain gauge. The flexible tipping bucket can be configured for 0.2mm or 0.5mm rainfall resolution.

  • Air Temperature
  • Principle: NTC
  • Measuring Range: -50 to +60 C
  • Resolution: 0.1 C (-20 to +50 C); otherwise 0.2 C
  • Accuracy: +/-0.2 C (-20 to +50 C); otherwise +/-0.5 C
  • Units: C; F
  • Humidity
  • Principle: Capacitive
  • Measuring Range: 0 to 100% RH
  • Resolution: 0.1% RH
  • Accuracy: +/-2% RH
  • Units: % RH; g/m3; g/kg
  • Pressure
  • Principle: Capacitive
  • Measuring Range: 300 to 1200hPa
  • Resolution: 0.1hPa
  • Accuracy: +/-1.5hPa
  • Unit: hPa
  • Precipitation
  • Principle: Tipping Bucket
  • Liquid Precipitation Resolution: 0.2mm/0.5mm
  • Precipitation Types: Rain, Snow
  • Accuracy: +/-2%
  • Technical Data
  • Interface: SDI-12, Modbus
  • Operating Temperature: -50 to +60 C
  • Operating Humidity: 0 to 100% RH
  • Included Cable Length: 10m
  • (1) WS401 Multi-Parameter Weather Sensor
  • (1) 10m sensor cable
  • (1) Operations manual
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