The Fish Hawk X4 is the gold standard by which "speed and temp" systems are judged. You'll find the X4 in more boats than any other speed and temperature system on the market. The system provides mechanical speed at surface, surface temperature, probe speed, and water temperature at the probe. To consistently catch fish you need to know lure speed and sub-surface temperatures. That's what the Fish Hawk X4 does better than anything else.
Wireless digital data transmission
Magnum digit LCD can be seen from anywhere in the boat
Easy to use with any downrigger
Water-activated auto ON/OFF probe
Data displayed: surface temperature and speed; probe temperature and speed
Units of measure: Fahrenheit/Celsius; MPH/KPH/KNOTS