Wind Sensor (Modbus)


WSD‑1™ is used on Dyacon MS-100 series weather station. It combines wind speed and direction sensors into a rugged package. Digital data are delivered using the Modbus RTU industrial protocol, which allows for long cable runs to computers, programmable logic controllers (PLCs), BAS, SCADA, and some data loggers.

WSD is also available in an SDI-12 version. Contact Dyacon for more information.



Wind Sensor Introduction

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WSD‑1™ combines both wind speed and wind direction in a digital, smart wind sensor. Rugged, machined aluminum construction can handle extreme abuse.

WSD‑1 is a standard component of Dyacon MS‑100 series weather stations.

As a native Modbus sensor, WSD‑1 is ideally suited for industrial applications and can be connected directly to PLCs, SCADA equipment, and DCS to directly add environmental data for other automation and logging applications.

Like all Dyacon equipment, WSD-1 is made in the USA.

Feature Summary

  • Wind speed (3 s, 2 min avg, and 10 min avg)
  • Wind direction (3 s, 2 min avg, and 10 min avg)
  • Real-time gust detection
  • Anodized aluminum
  • Stainless steel bearings
  • No-contact wind vane direction sensor
  • No direction dead spots
  • Modbus RTU
  • Low-power operation
  • Durable construction

Key Features


WSD‑1™ is made in the USA from 6061 machined aluminum. The standard product is gold anodized. Anemometer cups are UV-stabilized polycarbonate.

All movement uses Dyacon stainless steel bearings with synthetic lubricant for long-life operation. The aluminum vane stem withstands harsh treatment. Vane and anemometer components are user-replaceable without disassembly.

WSD-1 slim mechanical construction minimizes snow accumulation.

Wind Direction

The wind direction sensor utilizes a no-contact sensor for high reliability and high accuracy, and, unlike potentiometer sensors, it has NO dead spots.


The unique mounting tube can either be fitted over standard 3/4” pipe, such as that used for antenna towers, or used with standard 1” structural pipe fittings.

Wind Speed

The anemometer is a 3-cup mechanism uses stainless steel ball bearings.

Data Connection

Power and data are supplied through a 4-wire connection. WSD‑1 wind sensor uses a Modbus RTU slave interface.


Range0 m/s to 50 m/s (0 mph to 112 mph)
Test Range0 m/s to 60 m/s (0 mph to 134 mph)
Starting Threshold<1 m/s (2.2 mph)
Resolution0.1 m/s (0.2mph)
Operational Range AccuracyGreater of +/- 3% or +/- 0.3 m/s
Distance Constant2.1 m (6.7 ft)

Range0° to 359° , No Dead Spots
Starting Threshold1 m/s
Accuracy+/- 1°

Operating Temperature-40°C to 60°C
Storage Temperature-40°C to 80°C
Operating Humidity0% to 100%

Power Input5 VDC to 24 VDC
Current<2 mAavg at 12 VDC

MaterialsAnodized 6061 aluminum 306 Stainless steel PC, UV-stabilized – cups only
BearingsStainless steel
Overall (WxDxH)15.2 cm x 32 cm x 25.5 cm (6” x 12.5” x 10”)
Cable4 conductor, 24 AWG, stranded Foil shield w/ drain wire Outdoor rated cable
Weight w/ Cable675 g (23.8 oz)
Weight w/o Cable500 g (17.6 oz)
OEM OptionsCustom anodizing color (red, black, blue, or clear)

Minimum Request Period20 ms
OEM OptionsCustom packet structure and competing device emulation

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