The approach of Identification needle detector and stainless steel machine:
Method one:
Stainless steel needle detector is used within the probe magnet,with a natural magnetic adsorption phenomenon,the false detection needle is made of permanent magnet steel.
The inside of the needle detector probe is made of coil and filling, and there is no magnetic adsorption phenomenon when no current through.
After the purchase of the machine,you can place the wrench on the inside of detection probe,there is a natural magnetic adsorption phenomenon,is proved stainless steel needle detector machine.
Method Two:
Really needle detector can detect even a small piece of tin foil.
This Needle detector is widely used in textiles.Especially be used to detect needle in underwear, shirts, sweaters, towels, gloves, shoes, socks, feather products, embroideries, bedding, children's products plush, small and medium-sized toys, food and other tests.