Very simple to use, simply make the connections necessary turn the rotary dial to the procedure you want and hit the testing button.To make testing easier the AET 23 is equipped with limited built-in memory that can store up to 20 testing results. A data hold function is also available that will temporarily store the last value taken but will not store the result in memory.This earth resistance tester is also suitable for use on both 50Hz and 60Hz frequencies, comes with a 2000 count backlit LCD display, is manual ranging and includes double insulation protection to ensure safety.
