The Seaward RS3/001 Cropico RS3 High Stability Resistance Standard, 0.001 Ohm is constructed using carefully selected low temperature coefficient wire, depending on the value, mounted on formers which have a high mechanical stability. The wires are wound in a strain free manner and heat treated to remove any stresses. They are also artificially aged under the strictest control. The result is a standard of high quality with long term stability and permanence of calibration combined with a low temperature coefficient. The RS3001 also offers a high current carrying capability which makes it ideal for applications where precise current needs to be measured. This product has a resistance value of 0.001 Ohms.