Precipitation Sensor QMR101


The QMR101 Precipitation Sensor is an economical and accurate rain gauge made of plastic material which is highly resistant to UV-radiation and even frost proof. QMR101 has a self-emptying tipping spoon of 0.2 millimeters capacity. Due to its small size, lightweight and rugged design, it is especially suitable for portable applications and temporary installations. QMR101 is installed on the sensor cross arm, and has ready-made cable with the connector.

Present Weather Detector PWD12


Thousands of Vaisala present weather and visibility sensors are installed around the world, working reliably and accurately in diverse applications and climates. In the Vaisala PWD-series of present weather detectors and visibility sensors, you will find the mix you require of visibility measurement range (MOR), characterization of reduced visibility, precipitation type identification, precipitation accumulation/intensity measurement, and report formats (WMO, NWS code tables)


​Accurate measurement of visibility

Robust and versatile

Indicates the cause of reduced visibility

Identifies precipitation type

Measures the intensity and accumulation of precipitation

Estimates snow accumulation

Present Weather Detectors PWD22 and PWD52


Dependability is the critical requirement for many of Vaisala's customers. Automated observation networks need to operate with maximum reliability. Maritime and aviation observing systems need to perform in extremely harsh conditions and many meteorological institutes face challenging productivity and performance requirements.

The Vaisala's systems answer these needs with a mixture of robustness, dependability, versatility, and reliability. They deliver a wide visibility measurement range and dependable present weather reporting.


Accurate, traceable measurement of prevailing visibility

Detects precipitation type

Measures the intensity and accumulation of precipitation

Estimates snow accumulation

Indicates the cause of reduced visibility

Robust and dependable

Weather-proof design reduces need for maintenance

Easy to install, easy to integrate

Present Weather Sensor FS11P


The Vaisala Present Weather Sensor FS11P is intended for demanding weather applications such as runway visual range (RVR), aeronautical and synoptical visibility and present weather observation. The FS11P is a combined RVR, visibility and present weather sensor. It delivers valuable multi-parameter measurement, all in one. It transmits data on visibility up to 75km, present weather covering obscuration, precipitation type and intensity, and optionally background luminance.


Detects precipitation type and intensity

Well suited for synoptic​ and aeronautical applications

The most widely proven forward scatter RVR sensor, selected and used by FAA

Meets FAA and ICAO specifications for RVR and visibility measurement

The most widely proven present weather sensing technology

Meets ICAO frangibility standards


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