A capacitive sensor for determining the presence of an object, such as a user's finger or a stylus, is provided. The sensor comprises a substrate, for example made of transparent plastics material, such as PET, on which electrodes are deposited. A resistive drive electrode for example formed of transparent ITO, is arranged on one side of the substrate and a resistive sense electrode, which again may be of transparent ITO, is arranged on the other side of the substrate. Thus an overall transparent sensor may be provided. A shorting connection is also provided which is configured to connect between two locations on one of the electrodes. The electrodes are connected to respective drive and sense channels. By providing the shorting connection between two locations on one or other (or both) of the electrodes, a lower resistance connection is provided between other locations on the electrode and the corresponding drive or sense channel.