The Fishfinder 90 also offers Ultrascroll which allows boaters to get a much faster refresh rate on their sonar display. AutoGain, as well as user adjustable gain, is also standard on all of Garmins new fishfinders.
Features include:
* Black-and-white FSTN display, 2.2 W x 3.2 H, 4-inch diagonal, 64 x 128 pixels
* Patented transom/trolling mount transducer
* Dual-beam transducer with user-selectable narrow (14) or wide (45) view to see more fish in shallow water
* Ultrascroll high-rep-rate sonar
* Automatic display re-scaling on range change (no more vertical lines with range changes)
* New AutoGain technology to see more fish
* New sounder design featuring excellent shallow-water performance
* Incandescent backlight for display and keypad
* Power output: 100 watts (RMS) 800 watts (peak to peak)
* Depth: 600 foot
* Unit dimensions: 4.72 W x 4.94 H x 2.43 D
* See-Thru technology: shows weak and strong returns simultaneously
* Power down backup of settings: customer settings are not lost when the unit is turned off
* Whiteline
* 2X and 4X automatic and manual zoom
* Alarms for fish size, shallow water, deep water, low battery
* Battery voltage indication