型号WS3000A  范围: 0.5/1.2/1.6/2.06mm2/24/16/14/12 AWG
型号WS3000B 范围: 0.5/1.2/1.6/2.06mm2/ 18/14/12/10/8AWG  
型号WS3000C 范围: 0.9/1.25/2.0/3.5/5.5mm2/22/18/16/14/12/10AWG