De Sauty Bridge is a very simple type of AC Bridge used to measure capacitance. Here we measure in unknown capacitance in terms of known capacitance and known resistance. Hence, we design a De Sauty Bridge by using two known resistances (R₁ and R₄), one known capacitance (C₂) and one unknown capacitance (C₃). The device gives the expression of C₃ in terms of R₁, R₄, and C₂.