4020 Mk II Compact Electromagnetic Speed Log

REF: JLG-0006

SKU: JLG-0006

4020 Mk II Compact Electromagnetic Speed Log

Compact Electromagnetic Speed Log

  • For vessels up to 50 metres
  • “Wheelmark” MED Type Approved
  • Small, light, easy to install
  • Digital Speed and Distance Run displayed by red LED dimmable indicators

By Walker

Walker 4020 Mk2 is a compact EM Speed Log for smaller vessels which require a “Wheelmarked” MED Type Approved system in a minimal package reducing the size and number of sub-units required. This results in a smaller, lighter system which is simpler to install. The 4020 combines the electronics unit with the speed and distance indicator in one master unit which may be console or bracket mounted. High reliability sensors, flush fitting, fixed and retractable types housed in hull fittings suitable for various hull materials, such as aluminium alloy, steel, GRP and wood.


  • Full compatibility with most Walker flush fitting, fixed or retractable speed log sensors and hull fittings.
  • Digital Speed and Distance Run displays by red LED dimmable indicators.
  • Multipoint speed calibration as speeds from up to 60 knots.
  • Removable keypad “calibrator”.
  • Built-in Speed Simulator.
  • NMEA 0183/RS422 and 200 ppnm outputs to other ship systems.
  • Repeater indicators to DIN144 standard (optional).
  • Simple to install, operate and service.
  • EM Speed Log technology drawn from over 30 years’ experience.

The Speed log can be supplied with a seavalve. Please email for a unique quote.

For your quotation please email sales@phpstack-450254-1410198.cloudwaysapps.com

Item Measurements
Please see Data Sheet
Packed Weights & Dimensions
44 x58 x 62cm - 25kg

Please note that due to the complex nature of shipping for certain products it will be more cost effective to contact AMI directly using the operations@amimarine.com address or the telephone number +44 (0) 2380 480450, for a bespoke quotation.

Our team are able to create bespoke quotations for you for all of your needs and delivery requirements.

We are able to ship to all parts of the world. Transit times vary and are usually between 2 and 5 days depending on the destination.

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