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DRD11A

Rain Detector DRD11A

Quickly and accurately detect rain and snow with the Vaisala Rain Detector DRD11A. The instrument operates via droplet detection rather than by signal level threshold. A special delay circuitry allows for about a two-minute interval between raindrops before assuming an OFF (no rain) position. This enables the sensor to accurately distinguish between rain cessation and light rain.

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Rain Detector DRD11A

Additionally, the DRD11A was designed with several elements in mind to keep the sensor free of snow and condensed moisture for quick drying.

Key features

  • Internal heating element: Ensures that the detection surface dries quickly. An essential factor in calculating intensity.
  • Special delay circuitry: Allows for about a two-minute interval between raindrops before assuming an OFF (no rain) position.
  • Reliable droplet detection: Sensor performance is not affected by reasonable amounts of dirt and dust.

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