Handheld Needle Detector TY-20MJ || Needle Metal Detectors Machine || Unboxing and Testing | Easysew

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The Handheld Needle Detector TY-20MJ is a portable device used to detect the presence of metal needles or other metallic objects in fabrics, garments, or other materials. It is commonly used in industries such as textiles, sewing, and manufacturing to ensure product safety and prevent injuries caused by the presence of metal contaminants.
The needle detector operates based on the principle of electromagnetic induction. When a metallic object passes through the detector's electromagnetic field, it disturbs the field and triggers an alarm or visual indication. The sensitivity of the device can often be adjusted to detect different sizes of metal objects.
To use a handheld needle detector, you typically turn on the device and allow it to calibrate. Then, you can pass the area of fabric or material you want to inspect through the detector's scanning area. If a metal needle or object is present, the detector will alert you.
Handheld Needle Detector TY-20MJ || Needle Metal Detectors Machine || Unboxing and Testing | Easysew
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