The data chips are placed in the red key holders. They serve for transmission of details of patrol data from the memory of device to PC.
They are the memory chips iButton DS 1996 that make the transmission of details from device to PC simplier. With their help it is not necessary to carry the device from the permanent side to the evaluation PC.
You enclose the chip to the device and it emits the signal of successful reading chip in several seconds. Now the data chip is ready for the trasmission of details to the PC. You enclose the data chip to the adapter that is connected to PC