... Japanese technique, anti-disturbance computer chip integrated circuit2 Automatic Conveyor Needle DetectorApplicable:Clothing, baby products, knit goods, underwear, hardware ... goods in 10 minutesHas the switch function for B/C (supplementary material/product), adapt to detect different productsCan ... can reach 100% when properly usedWhen detect the broken needle, or Fe, it will alarm by sound and light ...