ZX21直流电阻箱,阻值范围:0.1Ω~99.9999kΩ准确度:0.1%
ZX21a直流电阻箱,阻值范围:0.1Ω~0.1111110ΜΩ准确度:0.1%
ZX74直流电阻箱,阻值范围:1mΩ~1.111210kΩ准确度:0.01%
ZX75直流电阻箱,阻值范围:1mΩ~11.11111kΩ准确度:0.01%
ZX76直流电阻箱,阻值范围:0.1Ω~0.1111110ΜΩ准确度:0.01%
ZX77直流电阻箱,阻值范围:1Ω~1.111110ΜΩ准确度:0.05%
ZX78直流电阻箱,阻值范围:10mΩ~111.11110kΩ准确度:0.005%