A tank system can provide a predetermined cold start volume of an operating liquid required by a liquid consumer after a cold start. In this manner, a sheet resistance meter is offered that can be readily accommodated into an existent manufacturing line so as to enable in-line measurement of the sheet resistance of a thin film and suitable control of the properties of a thin film. Said transponder circuit also comprises a rectifier, an energy accumulator and a semiconductor circuit which are connected downstream of the resonator. The disclosure also relates to a method for manufacturing telecommunications cables having layers adapted to resist post-extrusion shrinkage. An immobilizer CPU is installed in a vehicle to receive commands from the RF breathalyzer and to control a horn and lights of a vehicle, to immobilize the engine, and is connected to a GPS antenna driver through a mobile phonepager unit to communicate with a monitoring station.