This bridge is fully portable with a built in sensitive Galvanometer and a dry battery. The bridge is extremely useful for resistance measurements with a fair degree of precision.

Series Arm : 

• There are 4 decades of 10 x 1, 10 x 10, 10 x 100 and 10 x 1000 ohms.

Range Multiplier : 

• A single rotary switch furnishes 7 range multipliers of x 1000, x100, x10, x1, x0.1, 0.01 and 0.001.

Range of Measurement : 

• Ohm to 1.11 mega ohms.

Battery : 

• A dry battery of 4.5 volts is built-in provision is there for using external battery for measuring high resistances.

Galvanometer : 

The bridge can be supplied with types of built-in galvanometer.Student galvanometer of M.O. 65 model, and of sensitivity 10 microamperes/mm.Taut suspension galvanometer of coil resistance 100 ohmsand sensitivity of 0-5 microampere per mm and with a mechanical coil locking device and a zero adjuster.In both models, external more sensitive galvanometer such as our spot reflecting galvanometer as above can be use for greater discrimination and accurate null point.

Resistance Coil : 

• Manganin coil which are non inductivity wound, aged and properly varnished are used.

Push Button : 

• Two push buttons for battery and galvanometer are provided.

Accuracy : 

• Both series and ratio coils are adjusted to an accuracy of better than 0.05%

• Overall Accuracy of measurements is better than + 0.1%

• With Students galvanometer of M.O. 65 model

• With Taut suspension galvanometer.