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Sensors for environmental monitoring wind, NESA

Systems for environmental monitoring and remote control

Encoder Wind Direction sensor 0 ÷ 360°
Encoder Heated Wind Direction sensor 0 ÷ 360°


The sensor for wind direction measure (Gonio-anemometer), is made of materials with high reliability and durability, that maintain for long time the characteristics of sensitivity and precision. The mechanical body shape allows to resist at high wind speed or squalls (up to 300km/h). Using a special magnetic encoder that ensures very high resolution and accuracy by eliminating any mechanical friction in a full operating angle of 360°. The output signal is normalized in voltage or current (4÷20mA or 0÷2Vdc) or digital on RS485/Modbus, available with heater at low power (5W@12Vdc). The sensor is manufactured according to standard WMO (World Meteorological Organization).


  • Magnetic encoder measurement of wind direction, precise and linear
  • Instrument according to standard WMO
  • Aluminum sturdy, compact and easy to install
  • Typical measuring range: 0 ÷ 360°
  • Resolution: <0.15°, accuracy: ± 0.3°
  • Sensitivity <0.21 m/s
  • Low power consumption (<0.1 W; <5W@12VDC with heater)
  • High dynamic response to wind
  • Output signal: 0÷2Vdc, 4÷20mA, RS485/Modbus
  • Operating conditions: -10 ÷ +70°C (35 ÷ +70°C heated version), 0÷80m/s (blasts)
  • Power supply: 10 ÷ 30Vdc


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Bracket / Arm Support

Fixing system for Nesa's sensors, composed by an arm of different lengths (50cm, 90cm, 150cm) and thermoplastic resin clam for external, able to withstand to extreme temperature and to solar radiation.
Two stainless steel screws for the tightening of the clamp on the sensor complete the equipment.

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MCS Signal Conditioning Module

Single channel module for conditioning digital and analog electrical signals. Fully programmable for binding input/output with the USB interface available as an option. The full data sheet is available at this address. main features:

  • Programmable input signals: Pt100, thermopiles, Voltages up to 2Vdc, Current 0÷20mA or 4÷20mA, frequency up to 1000Hz, Counter for pulses (1ms min)
  • • Programmable Output signals: voltage 0÷2Vdc; Current 0÷20mA or 4÷20mA Serial RS485 (command line); Modbus RS485
  • • Resolution: 18 bits with over 262,000 points
  • • Operating conditions: -40 ÷ +80°C
  • • DIN rail mounting
  • • Power supply: 10÷30Vdc (typ. 4mA@12 Vdc)

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NPI shielded cable. With IP68 waterproof connector for connecting to the sensor, and terminal sleeves for insertion into the terminal blocks. Available in any length.

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Standard cable

Shielded multi-core cable for indoor/outdoor use, suitable for hot and cold climates.
With IP68 waterproof connector for connecting the sensor, and PS2 plug connector for direct connection to the data logger or with terminal sleeves for insertion into the terminal blocks. Our cables are standard for most our sensors.
Available in different lengths starting from 1m.

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Otherwise call us at +39 0423.985209

NESA Srl - Via Crociera, 11 - 31020 - Vidor (TV) - Italy
Tel+39.0423.985209 - Fax+39.0423.985305
e-mail: info@nesasrl.it
C.F. e P.IVA. 01422830990