Rectifiers & Electronics manufactures Contact Resistance Micro-Ohm Meter. Rectifiers & Electronics is an ISO 9001:2000 certified company. The Contact Resistance Micro-Ohm Meter is used to measure resistance between 0.1 micro ohm to 2 milli ohm. It is capable of providing test current between 20A - 200A depending upon the load resistance and supply voltage and falls under the category of DC electrical machines. It is applied to test high current contacts for circuit breakers, bus-bar joints, switches, and other applications where high current junctions are present. This compact meter is portable and easy to operate. It offers built in safety arrangement for both equipment and operator.