After waking and receiving the beacon frame, the sensor must transmit the data. The Si10xx devices are highly integrated solutions that include the RF power amplifier (PA) which can achieve +20dBm on some devices. In addition, the transceiver includes packet handling features to reduce the CPU overhead. This feature allows the CPU to remain in a low power sleep state for a longer duration. The receive sensitivity, -121dBm, provides for increased link budget which translates to extended range.