Always test all products before mounting on your vessel, or other hard to reach location.

(Also see Wallis&Gill documentation site:

Wind Sensor

(AK3 Serial Number SN0200-0299 Help Wallis&Gill © 2022. V0.1 11/3/2022)


Installation Instructions

1-. Remove from packing.

2-. Identify +12VDC wire.

3-. Connect to nominal 12VDC (6VDC to 17VDC OK).

4-. Connect PC/Phone/Tablet to unit WIFI access point SSID AK3****** with password on123tack. Chrome/Browser to (more see *Addendum 1) and configure for YOUR ROUTER/ ACCESS POINT and network with password 321tackon. Optionally configure IP address and port for SignalK and NMEA0183.

5-. The unit comes with the external WIFI connection set to disabled/disabled. You need to use a WIFI router for all uses except very basic testing or use with only a single tablet or similar. Large vessels or vessels with very high masts require a WIFI ROUTER that it is strategically placed forward of the mast base and not covered by metal surfaces.

6-. Optionall configure your NMEA/SignalK Instrument/App/Plotter to use the WIFI UDP broadcast Wind/Attitude/Temperature data.

7-. Optionally connect a Wallis&Gill remote adapter/converter (NMEA 2000/Legacy instrument adapter/WindControl Relay remote). And/Or optionally configure a SignalK server or Kplex NMEA data distributor.

8-. Example, for OpenCPN plotter (or similar) to use NMEA0183 XDR and/or MWV UDP data. Then, if port is 3335 then NMEA data is broadcast on 3336 as appears on top of NMEA data column.

9-. You can click on the top and bottom images to find special hidden instrument panels. Also the page has links to additional instrument displays:
In this example your serial number is 202. You can also use if mDNS is not available. See Addendum.

Correction Settings

Allows for wind speed and angle to be adjusted. Roll correction automatically adjusts the
wind speed based on heel angle.


Set the SSID and the password for your LAN WIFI access. Do not confuse with the built in
AP on

UDP Address and Port

This must match the address/port of your SignalK, OpenCPN or Navionics connected to
via the configured SSID. Please note that the NMEA port is one more than the UDP Port number.

NMEA0183/SignalK Check Boxes.

These check boxes allow you to enable/disable the sending of the corresponding UDP data. This is useful for WIFI bandwidth optimization and to allow other boat sensors to be used instead.

Setup Password

You need to re-enter the setup password to save any changes. See Addendum.


Do not mount at difficult to access location before fully testing.

Mounting Wind Instrument/FRAGILE

For correct use the wind sensor must be mounted where it is not affected by boat
structures, sails, rigging etc. Usually at the top of the mast in forward position pointing exactly to the bow.

New version (SN0200+) allows easy disassembly/assembly (see addendum below)

You should MAKE SURE that the instrument faces the BOW of your boat or NORTH if using for weather station.


The ceramic bearings allow for years of use at sea but are sensitive to dust and other small particles. You need to clean with compressed air (or WD40) every year or after contact with dust storms etc.

You should lightly spray rotor assembly with UV resistant white or transparent paint every 2 years.

Addendum 1: MDNS/Bonjour/Avahi-Daemon

This product uses mDNS for hostname announcement. Linux laptops, Windows, MAC, but NOT Android, usually have this turned on as part of a default network domain name resolution protocol. So, instead of using IP when connected directly via the product AP you should be able to use the hostname ws217.local, where 217 is from the serial number AK3SN0217. On android all is not lost since you can download from the Playstore an mDNS discovery app and type in ws117 (or in some cases ws117.local) and search for the IP number. This is very useful when you connect this product to an external WIFI LAN that will assign
an IP based on DHCP and that is not easily discovered unless you login to the product AP and check the /stats/ page.

Addendum 2: Factory password change

When connected to your sensor you can change the AP WIFI password and the setup (save changes) password here:


Lost password: Access to sensor can only be reset by taking apart the sensor unit and using a special programming cable.

Addendum 3: Disassembly of Sensor

In case you need to repair or clean your sensor:

1-. Remove wind vane by carefully by pulling up it up by conical bottom part (slowly! You
may need to wiggle slightly).

2-. Use a small flat screwdriver to remove side slot silicon glue from sensor body.

3-. Use a small flat screwdriver to pry open shell from the top inserting tool vertically. Slowly and carefully. Once it is a few mm open you can open by firmly grabbing the case from the front side.

4-. Once open you can easily remove the wind vane and wind rotor assemblies for
cleaning or for replacement with parts ordered from us.

5-. Assembly is the reverse of this list you will need a small amount of white silicon sealant for extra side protection.

6-. Take advantage and clean with alcohol and then gently spray rotor assembly with a small amount of white or transparent UV resistant plastic spray paint every 2 years.