Speedometer Terms

PITOT (pee-toe) MOUNT - A part attached to the transom to pickup water (psi) as the boat travels through the water. This water runs through a hose to the mechanical speedo in the dash to register your speed.

AERATION - The mixing of air (bubbles) with the water under the boat. This helps to lift the boat from the water to increase your speed. You do not want aerated water in the pitot tube as it will cause the speedo to read low. There should be solid (non-aerated) water running through the pitot tube.

In order to produce accurate speedo readings, the pitot tube must be placed in un-aerated water. New stepped bottom technology can make it tricky to get the pitot tube mounted correctly. A thru-hull fitting allows the tube to be mounted on the step bottoms and the hose routed directly through the hull to the speedo, leaving no hose exposed.

CALIBRATION - The process of matching an instrument’s reading to a piece of test equipment with accurate data to ensure the gauge is reading properly. Speedometers cannot be calibrated in the field.

KICK-UP - A type of pitot tube that will swing out of the way if it hits debris in the water. Also good to clear a trailer bunk or when beaching a boat.

PITOT (pee-toe) MOUNT - A part attached to the transom to pickup water (psi) as the boat travels through the water. This water runs through a hose to the mechanical speedo in the dash to register your speed.

Liquid Filled Speedometers

Glycerin filled to stabilize needle bounce for precise readings. Calibrated and tested in house. Liquid filled speedometers contain a large air bubble that allows the glycerin to contract and expand.

Please call for pricing and availability 847.752.2700

Liquid Competition- GC

• 4" cutout, 4 1/2" overall
• Speedo Kit includes:
• gauge
• 25 feet of hose
• pitot mount and assembly

GC80PLCH

Liquid Pro- GL

• 3 5/8", 4 overall
• Speedo Kit includes:
• gauge
• 25 feet of hose
• pitot mount and assembly

GL60WBL

Click here for Livorsi Pricing

Mega & Race Liquid Filled Speedometers

• 4 5/8" cutout, 5" overall
• Speedo Kit includes:
• gauge
• 25 feet of hose
• pitot mount and assembly

Visit the Mega& Race Series webpage

Click here for Livorsi Pricing

Dry Speedometers

GDS Speedometers

• 3 3/8" cutout, 3 3/4" overall
• Fluorescent red needle
• Red backlighting for easy viewing
  in low light conditions
• Kit includes:
• gauge
• 25 feet of hose
• pitot mount and tube

GDS100WCH

Please call for pricing and availability 847.752.2700

Livorsi II Standard Edition Speedometers

• 3 3/8" cutout, 3 3/4" overall
• Domed lens and radius rim
• Front sealed to prevent fogging
• Choose from an all black gauge or all white
• Kit includes:
• gauge
• pitot tube and mounts
• 25 feet of hose

Please call for pricing and availability 847.752.2700

GII100WW

Please call for pricing and availability 847.752.2700

Please call for pricing and availability 847.752.2700

Livorsi II Special Edition Speedometers

• 3 3/8" cutout, 3 3/4" overall
• Domed lens and radius rim
• Front sealed to prevent fogging
• Platinum dial and Chrome radius rim only
• Kit includes:
• gauge
• pitot tube and mounts
• 25 feet of hose

Click here for Livorsi Marine Pricing

LIISE100

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Please call for pricing and availability 847.752.2700

Mega & Race Series Speedometers

• 3 3/8" cutout, 3 3/4" overall
• These gauges use Deutch connectors for simplified installation
• Your choice of Mega or Race rim in 9 powder coat colors or in stainless steel
• Kit includes
• dry speedometer
• pitot tube and mounts
• 25 feet of hose

Visit the Mega& Race Series webpage

DCMS100WPUMR

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Industrial Series Speedometers

Purchase a complete kit or the gauge alone.

• 3 3/8" cutout, 3 3/4" overall
• These gauges use Deutch connectors for simplified installation
• Available with SAE rim only

• Kit includes:
• dry speedometer
• pitot tube
• hose
• mounts

DCMS80BKBK

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Vantage View Speedometers

These speedometers only work with the Vantage View system

• Standard or over size cutouts
• Speedometer receives data from the Vantage View Master Tach which can be from either
  • CAN message
  • paddle wheel
  • GPS signal
• The paddle wheel or GPS antenna must be NMEA 0183 compliant
• If using a GPS antenna, use Livorsi part # GPSRANBVV, as other GPS antenna models may not work with the Vantage View system

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Electronic GPS Speedometer w/ Odometer

Shown here: ESS120KPLBKM

This GPS Speedometer kit uses a GPS satellite system
to calculate speed, odometer & trip odometer.

• 3 3/8" cutout, 3 3/4" overall
• Updates 5X a second for real time speed
• No need to calibrate for automotive applications
• Pulse generator features an LED to indicate condition of GPS satellites
• Calculate trips by resetting trip odometer when refueling
• Available with Mega or Race rim

• Kit includes:
• gauge
• pulse generator
• antenna
• switch

Installation & Calibration Instructions

Visit the Specials page for pricing

Click here for GPS Speedometers

Livorsi Marine Inc. 715 Center Street Grayslake IL 60030
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