Standard & after Market Coils…

Does size matter, with coils…

In my opinion “yes” it does…

Here is why my opinion is “Yes”… follow the links for a more scinetific explatnation

The stock 5″ factory coil that came with the T2se, but it will work whether its on the classic green or se T2..

All metal detectors are sold with the optimum coil, that is the coil it comes with is the best for it to work straight out of the box, for any after-market coil to work properly the coil has to be in synch with the metal detector, if the metal detector does not have a ground balance your stuffed, you will make the metal detector try to work, and the detector will be missing things big and small..

The size of the coil influences the detection depth and sensitivity of a metal detector because a metal detector coil works by emitting electromagnetic waves… The bigger the coil the bigger the electromagnetic waves… It is these electromagnetic waves that makes the detector see metal objects buried in the ground, so the bigger the radius of the coil the bigger the depth…

When these fields of electromagnetic waves, come into contact with a metal object, this metal object then produces its own eddy current within the metal object, which then generates its own electromagnetic waves, it is these waves from the metal objects that are registered by the metal detector…

Although a small coil is not as deep as a large coil, it does have a more concentrated electromagnetic field, making them more sensitive to small objects & tiny fragments, making these metal objects more easily detected…
When you chose to use a smaller coil, you gain a lightweight & an “easily” manoeuvrable coil, as these smaller coils can fit in small or tight places, & very easily fit in between the rows of stubble, that gets left behind when the crop has been harvested, for many, depth is everything, but although depth will not change too much, the size & shape of small coils are changing, & like the one, i have my eyes on at the moment, which is a ten by five, these narrow coils i hope will allow me to cover more ground, yet have the benefit of a smaller coil …

DETECH 10x 5 S.E.F WSS Coil For Teknetics T2, T2+, T2 LTD Metal Detectors | Detech | 10x5 SEF WSS

these coils are advertised as having better ground balance, sensitivity and pinpointing… are more stable in operation, & has an accurate target identification, with both stable ground, and better overall field performance… whilst there is a ribbed housing, specially designed for absorbing the mechanical shocks and vibrations…. the whole coil is made from a special polymer, which is strengthened with glass fibre, with the whole thing injection-moulded using very high pressure… creating a waterproof coil with maximum UV Protection…