In 2015, the Russian AKA company introduced coils with a frequency range of up to 20 kHz, making it the highest available option. These high-frequency coils are perfect for detecting small objects like coins and gold nuggets with great precision. While they may not offer as much depth compared to lower frequency coils, they excel at detecting smaller items at greater depths. For instance, a 20 kHz coil can detect a flake coin up to 18 cm deep, whereas a 7 kHz coil can only reach 14 cm. Choosing a 20 kHz coil is ideal for those searching in less cluttered areas, as its high sensitivity helps filter out unwanted metal debris and focus on valuable targets. The only challenge may be identifying larger metal objects amidst the precise detection capabilities of these advanced coils. Exciting times lie ahead for AKA metal detector enthusiasts!
Showing all 2 results
