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