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Mobile telephone alarm system with infra red movement detector for preventing theft of a telephone
Mobile telephone alarm system with infra red movement detector for preventing theft of a telephone
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机译:带有红外移动探测器的移动电话报警系统可防止电话被盗
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摘要
The alarm device includes an infra red movement detector built into the back of the mobile telephone. This can be controlled via the mobile telephone menu. The sensor has a range of 0 - 10 m long and 0 to 4 m wide. If something within this range moves, an alarm sound is triggered which can be switched off via the menu.
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