The AS-630EC needle detector is a验针机 designed with anti-interference digital circuitry and magnetic induction principles. It is primarily used for detecting residual needles, sharp metal objects, iron filings, and other ferromagnetic metals in shoe materials. Widely employed in industries such as plush toys (soft toy plush toys), clothing, knitting, bedding, leather, sleeping bags, non-woven fabrics, accessories, wood, and textiles to identify ferromagnetic materials lost in raw materials or products.