Standard Resistance Box :
Used as reference standard
To be used with Kelvin Double bridge or Digital Micro-ohm Meter
Range 1 milli-Ohm to 1K Ohms, 7 different values , Accuracy 0.5 % .
7 different values of 1 mW, 10mW, 100mW , 1 , 10, 100 & 1KW
Current ratings are for 1mW ( 20A), 10mW ( 10 A), 100 mW ( 0.1 A),
1W ( 50 mA), 10 W ( 10 mA ), 100 W ( 5 mA ) & 1 KW ( 1mA)