Gill Instruments

WindObserver 65

ClimateMeteorological Station & Sensors

Gill WindObserver 65 – Precision Wind Measurement Built for the Harshest Environments

Wind speed and direction sensor RS422
Marine wind sensor for ships and ports
Wind sensor with heating for cold climates

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Overview

The Gill WindObserver 65 is a high-performance ultrasonic wind sensor designed to measure both wind speed and direction accurately in demanding environments. Built from corrosion-resistant stainless steel and featuring an IP66 protection rating, it operates reliably in marine, industrial, and aviation settings. With no moving parts, it delivers maintenance-free operation and consistent data even under strong winds, heavy rain, or extreme temperatures. The sensor measures wind speeds up to 65 m/s with a 360° directional range and offers digital outputs such as RS422 or RS485 for easy integration with monitoring systems. Its durability, precision, and all-weather capability make the WindObserver 65 ideal for long-term outdoor and coastal wind monitoring applications.

Key Features

Precision Ultrasonic Anemometer
0-65m/s Wind Speed
0-360º Wind Direction
Free data logging software
Optional de-icing system
IP66 rated stainless steel construction
Optional base mounts/cable exit
Averaging/gusts to WMO guidelines

Typical Applications

Aircraft Landing Systems
Marine Vessel Dynamic Positioning Systems
Ports and Harbours
Road and Rail Monitoring and Safety Systems
Wind Turbine Control Systems
Building Control and Structural Safety
High Altitude Weather Monitoring
Power Generation and Transmission Safety

Specifications


WIND SPEED
Range	0 - 65 m/s (0-145mph)
Accuracy	±2% @12 m/s
Resolution	0.01 m/s
Starting Threshold	0.01 m/s
Offset	0.01 m/s

WIND DIRECTION
Range	0 - 360°
Dead band direction	None
Accuracy	±2° @12 m/s
Resolution	1°

MEASUREMENT
Ultrasonic output rate	1Hz, 2Hz, 4Hz, 5Hz, 8Hz or 10Hz
Parameters	UV, Polar, NMEA, Tunnel
Units	m/s, knots, mph, km/h, ft/min
Average (Selectable)	Rolling average - 1, 2, 10 m.n, Gust - 3s
Block average	0-3600s

DIGITAL OUTPUT
Communication	RS422/RS485 full duplex/half duplex
Baud rates	1200, 2400, 4800, 9600, 19200, 38400
Formats	8-bit data; odd, even or no parity
Anemometer status	Supplied as part of standard message

MECHANICAL
External Construction	Stainless steel 316
Size	Refer to diagram overleaf
Weight	1.4kg

ENVIRONMENTAL
Protection Class	IP66 (NEMA4X)
Humidity	0% to 100% RH
Operating Temperature	-55°C to +70°C (Heated option)
Precipitation	300mm/hr
EMC	EN 60945: 2002, EN 61326-1: 2013
Icing	MILSTD810F Method 521.2 Procedure I