Thanks to Wireless technology, all data arrive to the display, with a maximum distance of 30 metres. It is made of a receiver and a floating sounder, which should be linked by a strong line to avoid that current or wind push it away from fishing area. The sounder’s max vertical range is 40 metres. The receiver works with 4 batteries type AAA of 1,5V (not supplied), while the sounder includes a CR2032 Lithium battery.