Gill Instruments

WindSonic 75

ClimateMeteorological Station & Sensors

WindSonic ultrasonic anemometers offer high accuracy, low-cost wind measurement

Industrial / infrastructure wind sensor (bridges, tunnels)
Renewable energy site wind sensor
Best ultrasonic anemometer for storm gust measurement

Quantity

Overview

The Gill WindSonic 75 is a rugged 2-axis ultrasonic wind sensor designed to measure wind speed (0–75 m/s) and direction (0–360°) accurately without any moving parts, making it durable and maintenance-free. Built with a corrosion-resistant polycarbonate housing and rated IP66, it operates reliably in harsh environments such as marine, coastal, and industrial sites. The sensor supports multiple communication outputs—RS232, RS422, RS485, NMEA, Modbus, and optional analogue (0–5 V or 4–20 mA)—for easy integration into weather monitoring or control systems. With fast response time, high accuracy (±2 %), and a wide operating temperature range (−35 °C to +70 °C), the WindSonic 75 is ideal for professional meteorological, renewable energy, and environmental monitoring applications requiring robust, high-performance wind measurement.

Typical applications

Remote weather monitoring stations
Building controls
Data buoys
Marine vessels
Small airports & helipads
Road & rail tunnels
Environmental field sites
Ports & harbours
Mobile weather monitoring vehicles
Coastal weather monitoring stations

Key Features

Wind speed & direction sensor
0-75 m/s (146 knots) wind speed
0-360º wind direction
WMO-compliant gust wind speed and direction calculated from a rolling average
NMEA output
Low power consumption
Fast start-up
Solid-state ultrasonic technology - no moving parts y Corrosion free

Benefits

High accuracy, low-cost wind measurement
Excellent, well proven reliability
Low maintenance delivers low cost of ownership
Models and outputs to suit varied applications

Specifications


WIND SPEED
Range	0 -75 m/s (146 knots)
Accuracy	2% RMSE @12 m/s
Resolution	0.01 m/s (0.02 knots)
Response time	0.25 seconds
Starting threshold	0.01 m/s

WIND DIRECTION
Range	0 - 360° (no dead band)
Accuracy	2° RMSE @12 m/s
Resolution	0.1° Option 1,2 & 3 (output at 0, 1 or 2 decimal places) 0.1° Option 5
Response time	0.25 seconds

OUTPUTS
Option 1 interface	RS232
Option 2 interface	RS232, RS422, RS485**
Option 3 interface	RS232, RS422, RS485** Analogue 0-5 V or 0-20 mA or 4-20 mA
Option 1, 2 & 3 proto cols	ASCII, NMEA 0183
Option 5	Modbus RTU, 2-wire RS-485
Baud Rate	2400 to 38400

POWER REQUIREMENT

Anemometer

12-30 VDC Option 1, 2 & 3

9-30 VDC Option 5

Current drain

Dependent on option selected e.g. < 2 mA @ 12V (SDI-12) to 44 mA @ 12V (4-20 mA) Refer to manual for further advice

Startup time < 5 seconds

MECHANICAL
External construction	LURAN S KR 2861/1C ASA/PC
Size	142 mm x 163 mm
Weight	0.5 kg

ENVIRONMENTAL
Protection class	IP66
Operating temp.	-35°C to +70°C
Storage temp.	-40°C to +80°C
Operating humidity	< 5% to 100% RH
RH Precipitation	300 mm/hr

ACCESORIES
Pipe mounting (optional) 44.45 mm (1.75 in) diameter	44.45 mm (1.75 in) diameter
Wind software	Display / logging*
Cables (optional)	Available to match output options
Display (optional)	See Gill Display datasheet

MEASUREMENT
Ultrasonic output rate	0.25, 0.5, 1, 2 or 4 Hz
Parameters	Wind speed & direction or U and V (vectors)
Units of measurement	m/s, knots, mph, kph, ft/min
Anemometer status	For unit diagnostics