The cell phone detector is a technological device that detects the presence and existence of cell phones in an area or within a stipulated range of operation. Once this cell phone detector detects the presence of a cell phone, the phone detector system raises the alarm and speak to the mobile phone user to switch it off. The cell phone detector has different ways of alerting the user of the phone; it does this by either sending an alert message, a single beep of the detector or ringtone. The operator of this device can record a voice message or write a customized text message that will be sent to every phone detected. This is a great way to prevent the use of cell phones in examination halls, worship sites, private rooms, etc. The use of the cell phone detector is also one of the ways of managing cell phones in the classroom.
The cell phone detectors are not only meant to be used to discover mobile devices that are in the conversation mode alone, but they can also be used for those that are in standby mode or switched on generally. Since it is not always possible to check everybody entering sensitive places like worship places, libraries, or any strategic site, the use of a cell phone detector will be important in such places. They can be used as rescue devices, and the authorities will use them to clear out all the unwanted things.