A physiological monitoring arrangement comprises a biometric sensor device coupled to a first garment, a first handheld computing device, and a second handheld computing device. The first handheld computing device is configured to act as a master in a device network and the biometric sensor is configured to act as a slave in the device network. The second handheld computing device is configured for wireless communication with both the biometric sensor device and the first handheld computing device according to the communications protocol in the device network. In particular, the second handheld computing device is configured to act as a slave to the first handheld computing device if the first handheld computing device is present in the device network, and the second handheld computing device is configured to act as a master to the biometric sensor device if the first handheld computing device is not present in the device network.