The present embodiments relate to a patient monitoring system having a patient monitor and a wireless pre-amplifier in wireless communication with the patient monitor. The wireless pre-amplifier is configured to receive a signal related to a physiological parameter of a patient from one or more sensors applied to the patient. The wireless pre-amplifier also includes a wireless attachment configured to wirelessly transmit the signal related to the physiological parameter of the patient to the patient monitor over a wireless communications channel, and an indicator feature configured to provide a user perceptible indication related to the wireless communication channel.