Wide Type Needle Detector NC-W1000 Wide Type Needle Detector NC-W1000FEATURES1. High quality magnetic structure, stainless steel shell, good ... Copper, Aluminum, Stainless Steel.5. Can install on fabric inspection machine, or use support to fix, install on fabrics production lines ... sensitivity Max.80mm height by steel needle (¢0.6*L33mm)Max.110mm height by steel needle (¢0.7*L25mm)4. Detection ...