This is what NEL Coils USA has to say about the NEL Coil:
“NEL-Coils are high performance search coils designed to be used with most major brand metal detectors.
There is great demand for search coils that are stable, sensitive and give more depth than stock search coils – We tested these coils and found them to be far superior to stock and other after market coils.
Some stock search coils do not work well in difficult ground conditions. They can be noisy and give false signals even at moderate sensitivity levels. With the NEL-Coils you will find that your machine is more stable and able to run at a higher sensitivity level.
NEL-Coils are manufactured like no other coils on the market today – They are perfectly balanced, tuned and made to last.
There are several sizes available to suit your hunting needs:
NEL Sharp: 5 inch round (13cm)
NEL Sharpshooter: 9.5″ x 5.5″ (24 cm x 14 cm)
NEL Hunter: 12.5″ x 8.5″ (31.7 cm x 22 cm)
NEL Tornado: 12″ x 13″ (30.5 cm x 33 cm)
NEL BIG: 15″ x 17″ (38 cm x 45.7 cm)”
Available for purchase at:www.golddiggermetaldetectors.com