Let the wind do the work

The Signet Marine MK30 is a completely self-powered anemometer. The signal generated by the spinning cups on the masthead sensor powers the MK30's dampened meter movement. This unique self-powered design makes it ideal for smaller yachts with limited power supplies or as a backup unit for larger yachts.


The MK30 consists of a precision indicator and masthead sensor to provide definitive wind speed indication for both racing and cruising yachts. Two MK30 instruments can be connected to one masthead sensor to allow dual display and will plug directly into existing Signet Marine masthead wiring with no changes necessary. The MK30 will work with all Signet Marine masthead sensors dating back over 40 years.

The MK24's partner

The MK30 is a perfect match to the MK24 Analog Wind Point Instrument and both can be connected to the Signet Marine masthead sensor with ease.


As with all our round traditional instruments, the meter movement and dial is protected by hard glass (not plastic) for years of clear viewing. The face is completely sealed to withstand weather, wash down, and corrosion. Matte-black finishing helps to minimize glare. For night use, red illumination (12V required) is provided through a full 360-degree lens.


The MK30 comes complete with all mounting hardware. The masthead sensor is available separately. Each unit comes with a two-year warranty and must pass extensive quality control standards before it is shipped.


Signet Marine SL 11 Analog Knotmeter
Instrument Dimensions

Main Features
Large, Easy-To-Read Dial
0 to 60 Knot Scale Standard
Self-Powered System
Red Night-Lighting

Mounting Options
Sensor: Masthead Mounting Required
Indicator: Bulkhead or Panel Mounting


Power Requirements
Instrument: No Power Required
Lighting: 12 VDC


The Signet Marine MK30 Wind speed Instrument.

An updated classic still going strong after 40 years.

speed sensor

What's in the box?

  • MK30 Wind Instrument
  • Instruction Manual and Mounting Hardware

MK30 (Instrument Only) (M3040)  $335

*Masthead Sensor available separately.

Also available in the Analog Wind Machine
which includes the MK24 Analog Wind Direction Instrument and Masthead Sensor with cables at a package discount.