Access control electronics for wireless locks comprise one or more battery operated radios that receive access control codes. The wireless accessed locks locate the electronic components, circuits, sensors and antennas and many of the lock components away from the container being secured and closer to the operator/user. The disclosed access control electronics combine a proximity detection circuit comprising sensor pads and a capacitive sensing circuit and one or more short-range radio frequency antennas for reading RFID devices. The proximity sensor pads are in close proximity with the antennas, without the antennas interfering with the proximity sensing process, and the sensor pads to not attenuate the signals between the RFID devices and the antennas after the RFID devices are detected.