The present invention discloses multi-purpose metering fluidrinse reagents for use in automated cellular analyzers that use liquid volumetric metering. The pixel units are disposed within an active area. The base station corresponds to a base station managed by a cellular phone service provider when cellular phones are used as radio transmitter-receiver means. A second electrical path extends between the first and second circuit nodes and is in parallel with the first electrical path. The invention further provides a method of modulating an immune disorder, and methods of treating tumours and infections.