ETCR Digital Earth Tester
 | | | |
| EM3000B-EP Explosion-Proof Earth Resistance Tester | EM3000-EP Explosion-Proof Earth Resistance Tester | EM3000 Digital Earth Tester | EM3000B Earth Resistance/Soil Resistivity Tester |
 | |  | |
| EM3040 Digital Earth Tester | EM3040B Earth Resistance/ Soil Resistivity Tester | EM3100 Digital Earth Resistance Meter | EM3100C Earth Resistance/Soil Resistivity Tester |
