In accordance with one embodiment of the invention, an I2C bus multiplexing circuit for use in an I2C bus interface can be provided. The electronic circuit has input and output terminals. The wireless device is further provided with a network manager to coordinate the transmit and receive operations of the first wireless transceiver and said the second wireless transceiver in order to enable the wireless device to communicate contemporaneously with the first and second wireless networks. An alarm signal is sent to a remote communication device of a third party. When the collection tube is removed the occluding seal keeps blood from flowing into the cavity of the insertable cylinder.