One query detection device improves query accuracy in detection by being arranged to from two-way detection concealed fluorescent printing matrix and magnetic material. One query detection device includes a photophore (20), a switch (26) and a lid (30). Multiple IR (InfraRed) LED (22) and white LEDs (shine Diodes, 24) are embedded in inside photophore, are installed in the lower part of a main body (10), are received a battery (12). The printing matrix of IR LED and white LEDs detection fluorescence simultaneously hides figure respectively. Switch is formed in a predetermined position around main body. One magnet is inserted into lid, couples with main body.
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机译：一种查询检测装置被布置为从双向检测中隐藏荧光打印矩阵和磁性材料，从而提高了查询的查询准确性。一种查询检测装置包括荧光体（20），开关（26）和盖子（30）。多个IR（红外）LED（22）和白色LED（发光二极管24）嵌入内部荧光粉中，安装在主体（10）的下部，并装有电池（12）。 IR LED和白色LED检测荧光的打印矩阵分别同时隐藏图形。开关形成在主体周围的预定位置。一个磁铁插入盖子，与主体相连。
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