Now, we are selling Expo handheld metal detector. Expo police used our handheld metal detector, let garden safety. It witnesses the Expo from beginning to ending. More than 70 million people were detected by it. The quantity is limited, so it has the super high collecting value.

We cooperation with Shanghai Gongyi Auction Co., Ltd and Shanghai Qinliange Auction Co., Ltd to auction Expo handheld metal detector. Echo degree is high.