P2 Marine - Your online source for sailing gear, rigging and marine electronics.


Free Shipping

CHIRP Transducers
Airmar CHIRP Transducers

Depth Transducers
B45 600W Thru Hull

B60 600W Tilted Element

B164 1kW Tilted Element
B258 1kW Thru Hull

D800 Thru Hull - 200 kHz

M260 - 1kW In-Hull

P79 In-Hull

P8 Shorty - 200 kHz

SS264N - 1kW Thru Hull

TM258 - 1kW Transom Mount

TM260 - 1kW Transom Mount

Speed Transducers
CS4500 Ultra Sonic Speed

ST300 Shorty Transducer

ST800 Speed / Temp

ST850 Speed / Temp

ST Identification Guide

B744V - Bronze Triducer

DST-800 - Analog Triducer
P66 Transom Mount Triducer

Smart Sensors
DST800 - NMEA 2000
DST800 - NMEA 0183

DT800 - Depth / Temp

P39 - Transom Mount

P79 - In-Hull Depth

ST800 - Speed / Temp
ST850 - Speed / Temp

Other Sensors
220WX Weather Station

GH2183 GPS / Compass

H2183 Heading Sensor

Airmar Transducers

Airmar Transducers

How Does a Transducer Work?
The easiest way to understand how a transducer functions is to think of it as a speaker and a microphone built into one unit. A transducer receives sequences of high-voltage electrical pulses called transmit pulses from the echosounder. Just like the stereo speakers at home, the transducer then converts the transmit pulses into sound. The sound travels through the water as pressure waves. When a wave strikes an object like a weed, a rock, a fish, or the bottom, the wave is reflected. The wave is said to echo—just as your voice will echo off a canyon wall. When the reflected sound wave returns the transducer acts as a microphone. It receives the sound wave during the time between each transmit pulse and converts it back into electrical energy.

A transducer will spend about 1% of its time transmitting and 99% of its time quietly listening for echoes. Remember, however, that these periods of time are measured in microseconds, so the time between pulses is very short. The echosounder can calculate the time difference between a transmit pulse and the return echo and then display this information on the screen in a way that can be easily understood by the user.

Airmar transducers, DST800, PB150,PB200, P39, P79, G2183, GH2183, weather station

We accept all major credit cards and Paypal.

Toll Free US: (800) 456-6740
International: (443) 569-8529
Skype: p2marine
Sailing Hardware
Marine Electronics
About Us
Contact Us
Shipping Information
Terms & Conditions
My Account
Order Tracking
Order History

P2 Marine, LLC
306 South Lake Drive
Stevensville, MD 21666