The handheld sonar system will give you instant depth readings to 199 ft. With the press of a button, it also will show real time temperature (water or air 0°-122°F) and fish readings. It features SideScan fish sonar, algorithmic programming, instant depth updates, dry-seal battery housing and dual temperature readout. Auto and manual readout modes. Operates on four AA batteries (not included). 30 hours of continuous use.
Unit dimensions: 7" x 2" x 2".