4105A Digital Earth Resistance Tester

Measure earth-resistance references with a 4105A tester matched to the required electrical inspection method.

✅ Read the resistance at the inspection point - A digital display provides the local result reference for the test.

✅ Carry a dedicated test instrument - The handheld format keeps the earth-testing function available at the installation.

Use the correct electrode and lead arrangement

An earth-resistance test depends on the installation and the measurement method, including the required electrodes and lead positions. Plan that arrangement before interpreting the instrument's displayed value.

A qualified tester must verify the supplied unit rating, accessories and calibration before use. An earth-resistance measurement is one part of the inspection procedure rather than a general proof that the installation is safe.

Technical details

• Model: 4105A
• Type: digital earth-resistance tester
• Range label reference: up to 2000 ohms
• Battery: not included
• Check supplied leads, stakes and actual test functions

Choose the documented earth tester for your inspection procedure.