The present invention concerns an electrode carrying immobilized redox enzymes such that electric charge can flow between an electron mediator group to the enzyme cofactor by the use of boronic acid or a boronic acid derivative that acts as a linker moiety between the cofactor and the electron mediator group. An encapsulation rear cover is widened at the edge of the display including the leads. The queuable objects include objects such as batch compute jobs or job reservations. Each of the strain gauges that are oriented similarly within each of the pockets are connected in series within a single leg of a bridge so that the output voltage of the bridge is unaffected by bending in the drill string.