![Amazon.com: SUNPOW Metal Detector for Adults, Professional Waterproof High Accuracy Metal Detector, 10'' Detection Depth, Pinpoint & Disc & Notch & All Metal & Volume Modes, Strong Anti-Interference-GC-1083 Amazon.com: SUNPOW Metal Detector for Adults, Professional Waterproof High Accuracy Metal Detector, 10'' Detection Depth, Pinpoint & Disc & Notch & All Metal & Volume Modes, Strong Anti-Interference-GC-1083](https://m.media-amazon.com/images/I/611gBlU8Q0L.jpg)
Amazon.com: SUNPOW Metal Detector for Adults, Professional Waterproof High Accuracy Metal Detector, 10'' Detection Depth, Pinpoint & Disc & Notch & All Metal & Volume Modes, Strong Anti-Interference-GC-1083
![Electronic Project 40: A Metal Detector for Security Device using the principle of a tank circuit for inductive sensing and with the aid of op-amp, speaker and arduino uno — Steemit Electronic Project 40: A Metal Detector for Security Device using the principle of a tank circuit for inductive sensing and with the aid of op-amp, speaker and arduino uno — Steemit](https://steemitimages.com/640x0/https://res.cloudinary.com/hpiynhbhq/image/upload/v1521027414/wradjizpnwuk9lwycrtb.png)
Electronic Project 40: A Metal Detector for Security Device using the principle of a tank circuit for inductive sensing and with the aid of op-amp, speaker and arduino uno — Steemit
![Amazon.com : Metal Detectors for Adults Waterproof - Higher Accuracy Gold Detector with LCD Display, 5 Professional Mode, Advanced DSP Chip 10" Coil Metal Detectors Kit Suitable for Adults, Children, Beginners : Amazon.com : Metal Detectors for Adults Waterproof - Higher Accuracy Gold Detector with LCD Display, 5 Professional Mode, Advanced DSP Chip 10" Coil Metal Detectors Kit Suitable for Adults, Children, Beginners :](https://m.media-amazon.com/images/I/81gM+VDwptL.jpg)