One of them also includes a built-in scraping blade

Specifications:

COIL #4 - 8

making it suitable for use in rivers

Frequency Shift - Use to reduce noise or electrical interference (EMI)

Nokta Simplex ULTRA Next Generation Waterproof Metal Detector For Serious Beginners Use_Treasure One of them also includesHERE IS WHAT YOU WILL RECEIVE: Nokta Simplex ULTRA NEXT GENERATION Waterproof Metal Detector Waterproof DD Search Coil 11" (SX28) with Cover (installed) Nokta USB Charging Cable Nokta User Manual 3 Year Warranty THE WORLD RENOWNED NOKTA SIMPLEX METAL DETECTOR JUST GOT LIGHTER IN WEIGHT AND HEAVIER ON FEATURES! The Nokta SIMPLEX New Generation series boasts all new aesthetics, enhanced technical performance, fully waterproof up to 5 m (16 ft) and all