... Automatic Belt Conveying Needle Detector NDC-CNDC-CNDC-C[FEATURES]1.Cycled magnetic sensor,excellent anti-disturb ... [PURPOSE] Detecting the metal chips inside the sewing products. Fabric products pharmaceutical products,chemical products,rubber products,food,etc. ... [SPECIFICATIONS] Model NDC-C(100mm) Detection method Magnetic induction Detection sensitivity 0.8mm ...