Find your dream fishing spots with the Humminbird 859ci HD DI Combo Fishfinder, featuring DualBeam PLUS Sonar with SwitchFire for versatile coverage and depth as well as Down Imaging Sonar for a more precise view of what's below you with high-frequency sound waves. Down Imaging technology scans the water with a beam that is wide side to side by thin front to back in order to produce high definition images. These systems are rated to work at depths up to 350' (DI) & 600' (2D) and has a peak to peak power output of 4000W. Also, they can be setup with multiple coverage angles of 16, 28, 45, and 75° due to the use of the DualBeam PLUS sonar system and the SwitchFire enables users to setup multiple views simultaneously. Viewing imagery while out in the elements is no issue with the implementation of a 7" LED-backlit color TFT LCD with a resolution of 800 x 480 pixels. Additionally, this unit has a built-in GPS system with chartplotting capabilities and the ContourXD map system.
The 859ci was designed with advanced functionality in mind with AIS technology and HD Radar support, ensuring that in poor visibility users will still be able to track other boats and objects that are nearby. Dual SD card slots are available for advanced cartography, saving screenshots, sonar recordings, and waypoints as well as updating the internal software. For protection in all elements and just the nature of being near water, this device is IP67-rated from waterproofing down to 3.3' for 30 minutes.
For connectivity, this unit supports NMEA 2000 for viewing boat performance, weather, and more in addition to a 5-port Ethernet switch to link together multiple head units or share transducers. i-Pilot Link is also supported for enabling select Minn Kota Terrova and PowerDrive V2 motors to communicate with the 859ci fishfinder.
- 360 image for isolating sweeps or viewing all around you
- SwitchFire enables multiple sonar returns modes such as Clear and Max for setting up an ideal view for your expedition
- DualBeam PLUS sonar combines two beams, wide and narrow, for both high detail and a wide coverage area
- Internal GPS antenna built into the head unit
- Internal software is upgradeable
- Dual SD card slots
- ContourXD cartography is built in and covers 3000 US lakes with depth contours as well as other locations without contours
- 5-port Ethernet enables linking together of multiple head units or sharing of transducers
- HD Radar support for maintaining situational awareness in high traffic areas or low visibility
- AIS support for viewing important points and tracking other boats in the area to avoid accidents in low visibility or high traffic areas
- NMEA 2000 ready for viewing boat performance, weather or water conditions
- i-Pilot Link for communicating with select Minn Kota Terrova and PowerDrive V2 motors
- Gimbal mount with option for in-dash mounting
- Temperature sensor built into transducer
- IP67 waterproofing for up to 30 minutes at 3.3'