Portable Wheatstone Bridge

This Bridge is fully portable with a built in sensitive Galvanometer and a dry battery. Series Arm: There are 4 decades of 10×1, 10×10, Range Multipliers: A single rotary switch furnishes 7 range multipliers of X1000, X100, X10, X1, X0.1, X0.01 and X0.001. Range of measurement : 0.001 ohm & 11.1 mega ohm. Battery: A built-in dry battery of 4.5 volts. There is a provision for using external battery for measuring high resistances.