A handy low-cost unit that tests a power outlet
for polarity, earth connection, incorrect wiring
and tests earth leakage circuit breakers. To
use the unit, simply plug in and compare the
neon lights on the front panel with the diagram
on the front of the instrument, and it will test
the wiring on the power point.
To test an earth leakage circuit breaker, first
check the wiring as above, then turn the rotary
switch to the mA range. To trip the RCD press
the test button.