Nokta INV40 15.5" x 14" Waterproof DD Search Coil for Invenio Metal Detector 4-stack-deluxe then save your own custom

then save your own custom settings as you learn the detector's response in your local soil

and sweep slowly over the scatter field

and the compact form factor stores easily in a toolbox or equipment bag

Best for: Detectorists hunting beaches

Nokta INV40 15.5" x 14" Waterproof DD Search Coil for Invenio Metal Detector 4-stack-deluxe then save your own customThe Nokta INV40 is a 15. 5" x 14" Double D search coil built exclusively for the Nokta Invenio detector, designed to cover more ground per sweep while maintaining target separation in trashy sites. Invenio owners working open fields, large parks, or beach zones need the INV40's expanded footprint to reduce passes and reach deeper targets. The waterproof construction handles surf, streams, and wet sand without concern, and the included protective cover