Ultra-Portable Incredibly Easy, Very Effective... Not only will this depth finder give you instant depth readings, from 2.5 to 199 Feet, in 1/10th precision, but at the press of a button, the display will give real time temperature (water or air) and fish readings. Use it in the winter to shoot through ice before cutting your hole. Use it in the summer as a range finder and temperature meter while diving. Use it as a backup depth sounder on your pleasure boat or scan for channels in your dingy. No matter how you use it, the H22PX is the one piece of equipment you should never leave the dock without. Side-Scan Fish Detecting Sonar - There is no guessing where the drop-offs are or where the fish are hiding when you use the H22PX. One press of the button allows you to scan an area for drop-offs, ledges, or hiding fish within 199 Feet (61 Meters). Scan under weeds, lily pads, or even docks for trophy lunkers before making a cast; the presence of fish is clearly indicated on the LCD.