Nokta Makro C23 9 inch Search Coil for CF77 Coin Finder Metal Detector

The Nokta C23 coil is compatible exclusively with the Nokta CF77 Coin Finder metal detector. The C23 is designed specifically for the CF77 and will not connect to other detectors. It will not work with other Nokta detectors or other manufacturers. If you're looking for coil options for a different Nokta detector, browse our selection of metal detector search coils to find compatible accessories for your specific model.

The C23 9-inch coil provides good depth on coin-sized targets, with actual performance varying by soil conditions. The C23 delivers reliable detection on dime and quarter-sized targets while prioritizing target separation in trashy ground. Actual depth varies with ground mineralization, target orientation, and discrimination settings. While larger coils push deeper in clean, open fields, the C23 is built for trash-heavy sites. It trades a fraction of maximum depth for superior target separation, allowing you to pick out individual coins hiding among dense metal debris at urban sites and old homesteads.

The waterproof construction allows hunting in wet conditions including creek beds and beaches. CF77 owners hunt creek beds, riverbanks, wet sand beaches, and shallow surf zones with the C23 without risking coil damage. The open-frame design works well in wet conditions and helps maintain consistent performance. Keep in mind that the CF77 control box itself has specific waterproof ratings, so verify your detector's housing limits before submerging the entire unit. The coil's waterproof construction also protects against rain and damp ground during land hunts.

The open-frame design reduces weight for comfortable extended hunts. The design reduces the coil's overall mass, which translates to less arm fatigue during long hunts. The open-frame design handles various terrain types effectively. In trashy ground, the open frame helps the CF77's discrimination circuitry isolate individual targets. For detectorists interested in how coil construction impacts detection performance, our metal detector technologies page explains the trade-offs between open-frame and closed-shell designs.

You do not need to recalibrate or update firmware when switching to the C23 coil. Simply swap coils and begin hunting, no calibration required. Detach your existing coil, snap the C23 into the lower rod connector, and power on your detector. The CF77's discrimination patterns, sensitivity settings, and audio profiles work identically with the C23 as they do with the factory coil. This plug-and-hunt compatibility makes coil swapping quick and straightforward in the field.

The C23 excels anywhere target density is high and space is limited. If you are hunting in high-trash urban environments, dense brush, or narrow creek beds, the C23's compact size allows you to isolate individual targets—like a silver dime sitting next to an iron nail—much better than the standard factory coil.

Yes, the Nokta C23 search coil ships with a full manufacturer warranty. As an authorized Nokta dealer, Serious Detecting supports your purchase. Please refer to our returns and warranty page for specific duration details and claim information.