Lowrance Speed Sensor

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Pub. 988-0147-571

Installation Instructions for

Lowrance



and Eagle



Speed or Speed/Temp Sensors

This instruction sheet will help you install your Lowrance or Eagle tran-

som mounted paddlewheel speed sensor or combination speed/temp sen-

sor. Please read all instructions before proceeding.

Recommended tools for this job include: drill, 5/8" or 7/8" drill bit, 1/8" drill

bit for pilot holes, screwdriver. Required supplies for this job include: four

#8 stainless steel wood screws (3/4" long), high quality, marine grade

above- or below-waterline caulking compound. Some equipment depends

on your sensor model. See page 2 for details.

To install the speed sensor, first find a location on the boat's transom

where the water flow is smoothest. Don't mount the sensor behind strakes

or ribs. These will disturb the water flow to the speed sensor. Make sure

the sensor will remain in the water when the boat is on plane. Also make

sure the location doesn't interfere with the boat's trailer. Typically, the

sensor is mounted about one foot to the side of the transom's centerline.

Transom showing mounting location.

Once you've determined the proper location for the unit, place the sen-

sor on the transom. The bottom of the bracket should be flush with the

hull's bottom. Using the sensor as a template, mark the hull for the

screws' pilot holes. Drill four 1/8" holes, one in each end of the slots.

Mount the sensor to the hull using #8 stainless steel wood screws (not

included). Use the caulking compound to seal the screws. Make sure

the sensor is flush with the bottom of the hull and tighten the screws.

Speed sensor rear view.

good location

Rear view

Bottom of hull

Need help?

Do you have a question about the Lowrance Speed Sensor and is the answer not in the manual?

Summary

Installation Instructions

Recommended Tools and Supplies

Lists recommended tools and required supplies for installing the speed or speed/temp sensor.

Finding the Mounting Location

Guidance on selecting the optimal location on the boat's transom for sensor mounting.

Mounting the Sensor

Steps for physically attaching the sensor to the transom using screws and sealant.

Cable Routing and Hole Requirements

Instructions on routing the sensor cable and required drill bit sizes for connectors.

Installation Cautions and Notes

Important safety precautions and notes regarding sensor installation, especially for Eagle products.

Warranty Information

Full One-Year Warranty Coverage

Details the product's one-year warranty against defects in materials and workmanship.

Service and Ordering Information

How to Obtain Service

Provides contact information for obtaining service for Lowrance and Eagle products.

Accessory Ordering

Instructions and contact details for ordering accessories for Lowrance and Eagle products.