989-2 Gill UltraSonic Anemometer

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: $1,665.00
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Availability:: Usually Ships in 1 to 2 Weeks
Product Code: 989-2


989-2 WindSonic Ultrasonic Anemometer, RS 232, RS485, RS422 Outputs

A lightweight unit, the WindSonic Ultrasonic Anemometer, manufactured by Gill Instruments, is of a robust, high strength construction. Without the need for expensive on-site calibration or maintenance, and with a corrosion free exterior, WindSonic is a true fit and forget unit.

The flexible design enables you easily to configure WindSonic to deliver the information you require. By using the software provided it is possible to select the output rate and choose the units of measurement that suit your application. Ensuring accuracy and reliability, WindSonic automatically transmits an anemometer status code with each output to indicate its operating status. Available in several options, providing a number of different digital and analog outputs, WindSonic is supplied with NMEA and RS232 digital output as standard.

Maintenance free, quick and easy to install, WindSonic is designed to be mounted using a standard pole fitting and comes complete with all screw fittings, a mating marine grade connector, and comprehensive user manual.

Providing accurate results in all weather conditions, WindSonic exhibits a number of distinct advantages:
  • Consistent performance throughout life (no accuracy degradation due to wear of moving parts)
  • Corrosion free, UV resistant material
  • Low start speed (0.01 m/s, 0.09 knots)
  • Maintenance free
  • No calibration required
  • Robust construction
  • Software configurable
  • Status code output
  • True 0-359 operation (no dead band on direction output)
  • Wind speed and direction from a single unit
  • Includes 50' of cable and connector


Wind Speed
Range: 0-60 m/s (116 knots)
Accuracy: 2% @12 m/s
Resolution: 0.01 m/s (0.02 knots)
Response time: 0.25 seconds
Threshold: 0.01 m/s

Wind Direction
Range: 0-359 (no dead band)
Accuracy: 3 @12 m/s
Resolution: 1
Response time: 0.25 seconds

Ultrasonic output rate: 0.25, 0.5, 1, 2 or 4 Hz
Parameters: Wind Speed & Direction or U and V (vectors)
Units of Measure: m/s, knots, mph, kph, ft/min

989-1: RS232
989-2: RS232 + RS422 + RS485 + NMEA*
989-3: RS232 + RS422 + RS485 + NMEA*, 0-5 V or 0-20mA or 4-20mA
989-4: SDI-12 (refer to manual for technical specification)
989- M: RS232 + RS422 + RS485 + NMEA*
Baud rate: 2400 to 38400
Anemometer status: Supplied as part of standard message
* NMEA 0183

Power Requirement
5-30 Vdc Option 1 & 2
7-30 Vdc Option 3
9-30 Vdc Option 4
From 5.5mA @ 12 V
Option M Anemometer 5-30 Vdc (5.5mA @ 12V)
Option M Optional Heating 24 Vac/Vdc (3.5A @ 24V) or 12 Vac/Vdc (2.1A @ 14V) (24V supply recommended)
Start up time < 5 seconds

External construction:
Option 1-4: LURAN S KR 2861/1C ASA/PC
Option M: Aluminum Alloy 6082 T6, hard anodized
Size: 142mm x 160mm
Weight: Option 1-4: 0.5kg, Option M: 0.9kg

Protection class: Option 1-4: IP65, Option M: IP66
Operating temperature: -35C to +70C
Option M with optional heating: -40C to +70C
Storage temperature: -40C to +80C
Operating humidity: < 5% to 100% RH
EMC: Option 1-4: EN 61326: 1998, Option M: EN 61326: 1998 & BSEN 60945
Impact resistance: Option M: UL2218 Class 1

MTBF: 15 years
Warranty: 2 years
Factory calibration: Traceable to National Standards

Pipe mounting: 44.45mm (1.75 in) diameter
Wind Software: Display/Logging software, provided with sensor
Cables: Available to match output options
Display: See Wind Tracker

Data Sheet


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