The Estwing Supreme 12oz Chisel Edge Rock Hammer ( E3-12PC) is a smaller, lighter version of the Estwing Supreme 20oz Chisel Edge Rock Hammer ( E3-20PC) . This rock hammer has a 12 oz head and a....
Measurement Ranges Earth Resistance: 0~ 20 © / 0~ 200 © / 0~ 2000 © Earth Voltage[ 50, 60Hz] : 0~ 200V AC Accuracy Earth Resistance:  ± 2% rdg ± 0.1 © ( 20 © range) |  ± 2% rdg ± 3dgt( 200 © / ....