The Fish Hawk Lithium Ultra Probe transmits speed and temperature data at depth, and the true depth of your downrigger using water pressure. The Ultra is compatible with its predecessor, the X4D.

The maintenance-free probe is 40% smaller than its predecessor and provides more than a week of fishing time on a single full charge. The Fish Hawk Electronics Lithium Series incorporates four decades of experience with the lithium power anglers expect in modern electronics. 

Underwater currents make trolling speeds at depth unpredictable. Temperature throughout the water column can change dramatically. Fish Hawk Electronics delivers speed and temperature data at depth to make trolling more efficient and effective. You can’t get this information from traditional fishing electronics. 

Features and Benefits:

• Compatible with Fish Hawk X4D 
• Transmits speed and water temperature at depth, and true depth
• Lithium Series Probe provides 40+ hours of fishing from a single charge
• Probe fully charges in 2-4 hours, partially charges in 20 minutes
• 5,000+ lifetime probe charges
• Water-activated probe extends battery life
• Smaller profile cuts through water and minimizes blowback
• Works on any downrigger
• Probe uses a 70kHz sonar signal to send data
• Two-year warranty

Box includes: probe, snap swivels, wireless charging pad with probe adapter and USB-C cable

SKU: FH450