The invention relates to an electrolyte for an electrochemical device. The method includes sending a 100 MHz time-division multiplexed signal on a receive data line and sending a time-division multiplexed receive control signal on a receive control line. The tubular member is configured to extend through eye tissue such that the inlet and outlet ends reside respectively in an anterior chamber and a physiologic outflow pathway of the eye. The inner film bag includes a welded portion and a ventilation portion. The device also includes selection means enabling formation of a first thermocouple from the first and second conducting elements and formation of a second thermocouple from the third and fourth conducting elements. The system for reading the tag comprises an array of transmitting antennas for emitting an RF transmitted radiation signal at a predetermined polarization towards the tag, and an array of receiving antennas configured for collecting re-radiated RF radiation produced by the tag at a polarization orthogonal to the polarization of the transmitting antenna.