Metal Detector TY-20MJ Hand held needle detector, it is called portable needle detector, which is small is small, and easy to carry by hand, It uses principle of magnetic field, can effectively detect out the exact location of the broken needle or Fe, which is especially suitable for the thin and small goods, After detection by the big standing needle detector, use this portable one to find the exact location of the broken needle or Fe to avoid the damage to the customers and improve the quality of the products. Application areas: Used to detect the broken needle, razor blade, and metal fragment, ferromagnetism metal such metal impurities in small, thin clothing, plush toy, ties, towels, scarves, socks, zips, medicine, and food and so on. Product Benefits: Has the switch function sound to alarm. Easy to operate, convenient to carry, and has high sensitivity. Adopts imported digital chip, has stable capability and durable. Can exactly recognize the location of the broken needle. Can last long time to work, and won’ t be warm. It will continuously sound when the voltage is lower than 6V.then need to replace the battery. Can be used to detect the ferromagnetism impurites inclothing and fittings with hardware buttons. Can detect the ferromagnetism impurities in medicine, food, industrial chemicals. Can inspect the nails, steel bars in wood, wall, tables and so on. Can inspect whether there is harmful iron dust inside when someone is injured. Also can be used in fronitier inspection, the government worker can rapidly search the hidden weapon of the crimninals. Technical Parameters: Detection methond: Magnetic induction. Detection Sensitivity: 1.0 Detection Area: 65* 40mm Alarm methond: Buzzer, Lamp. Power source: AD9V Dimension: 145mm( L) * 60mm( W) * 45mm( H) Weight: 280g Hub mia 0856 9139 8333, 021-40911748 Email : mia_ brsinaga@ yahoo.com