This standards grade Kelvin-Varley voltage divider is highly accurate, stable, and linear instrument for use in many applications requiring accurately known voltage or current ratios. In particular, the RV722 is
especially appropriate for use in bridge circuits, providing two arms of a bridge with a very well known ratio. Applications include linearity determination, the measurement of voltage and resistance, and the calibration of voltage, current, and resistance.

esi RV722 Datasheet