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  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

i need circuit diagram for metal sensor

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Eng M.Salah

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Hi all
i am facing problem and i need help
i search for metal Sensor to detect metals but i need range about 7 to 10 meters coz all metal sensor operate in audio band so it work in small range i hope u help me in finding circuit diagram or even ready made sensor coz i search in google and yahoo to but i dont find anything and also i need this sensor small in size and accurate in reading and also light in weight plz kindly help me :)
 
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