Vaisala WXT531 Rainfall Sensor

The Vaisala WXT531 measures rainfall in a compact platform with optional heating to keep sensors clear of snow.


  • Low power consumption is ideal for battery powered systems
  • No moving parts for durability and long maintenance intervals
  • Easy integration with 3rd party data collection platforms


The WXT530 is a series of weather instruments that provides six of the most important weather parameters, which are air pressure, temperature, humidity, rainfall, wind speed and direction through various combinations. Select the transmitter with the needed parameter(s) for specific weather applications, with a large variety of digital communication modes and a wide range of voltages. There is a heated option available. Low power consumption enables solar panel applications. The Vaisala WXT530 Series focuses on maintenance-free operations in a cost-effective manner.

The series offers analog input options for additional third-party analog sensors. With the help of the built-in analog to digital converters, the Weather Transmitter WXT530 turns into a small, cost-effective weather parameter hub. Additional parameters include the solar radiation and external temperature sensor. Further, the analog mA output option for wind speed and direction enables a wide variety of industrial applications. The WXT530 exceeds IEC60945 maritime standard.

Solid Performance
The WXT530 Series has a unique Vaisala solid-state sensor technology. To measure wind, the ultrasonic Vaisala WINDCAP Sensors are applied to determine horizontal wind speed and direction. Barometric pressure, temperature, and humidity measurements are combined in the PTU module using capacitive measurement for each parameter. This module is easy to change without any contact with the sensors. The precipitation measurement is based on the unique acoustic Vaisala RAINCAP Sensor without flooding, clogging, wetting, and evaporation losses.


ImagePart#Product DescriptionQuote
WXT531A1A1A1A1A1BWXT531A1A1A1A1A1BWXT531 rainfall sensor
WXT531A1A2A1A1A1BWXT531A1A2A1A1A1BWXT531 rainfall sensor, includes heating
WXT531A1B1A1A1A1BWXT531A1B1A1A1A1BWXT531 rainfall sensor with M12 male connector
WXT531A1B2A1A1A1BWXT531A1B2A1A1A1BWXT531 rainfall sensor with M12 male connector, includes heating