KELVIN BRIDGE Fitted in elegantly polished wooden case for precision measurement of low resistance, range 10 to 1 ohm. With a rotary dial having ten coils of 0.1 ohm each and a circular slide wire resistance reading in steps of 0.001 ohm. A multiplier of 0.1 enables readings upto 0.0001 ohm. Separate current and potential terminals are provided. Properly aged manganin coils are used. Accuracy +0.1% or +0.2% of the slide wire length whichever is greater.