FIG. 1B illustrates an exploded view of the electronic device 100 where various internal parts are shown in more detail. The case cover 120 contains a logo and also the lanyard hole 112. The device includes a GPS/GNSS antenna 122, which can be a flexible omnidirectional antenna. The battery 124 is placed on the device and it could be smaller or larger than the one shown in the figure. The device includes a Bluetooth or WiFi antenna, which is preferably a chip antenna 126 to take least amount of space. The type C USB connector 130 for recharging the battery is also used to program the micro controller. The main PCB 132 and the side PCB 134 of the device are connected using a ribbon type cable 128. The side PCB 134 also contains a light sensor 136 and the temperature/humidity/pressure/volatile organic compound (VOC) sensor 138. The device includes an alarm buzzer placed in the circle shaped space 140 for a good fit of the buzzer. A double-sided tape or other adhesive can be used to attach the buzzer to the case such that it can cause vibrations and sound can be emitted out of the device.
FIG. 1C illustrates another angle of the device showing a 2G/3G/4G antenna as a PCB antenna 152, the buzzer 154, and a cellular module 150. The antennas can be designed for world-wide coverage.
