TESTING IMPLEMENT AND MEASURING DEVICE

A biosensor 2 includes a component measurement region disposed on a substrate formed from a conductive material, for measuring the measurement target component, a conductive region formed of a conductive material and disposed on the substrate, and at which a voltage application point to which a predetermined voltage is applied, an earth connection point connected to ground potential, and at least one measurement point for measuring an electrical measurement value, are established, and a resistance prescription region that prescribes a ratio, within the conductive region, between a first resistance value at the conductive region between the voltage application point and the earth connection point, and a second resistance value at the conductive region between the voltage application point or the earth connection point, and the measurement point.