The ET18 Electronic
Gold Tester works just like the M24,
but offers a more affordable price to those who don't need to test for every
possible karat value. Specifically, the ET18 tests for 10, 14, and 18
karat gold. Along with the ET18's affordable price, it is also the
world's smallest pocket size electronic gold tester.
Here is a close-up of the control panel, showing the 3 karat values, and the
Yellow/White Gold indicators:
Like the M24, the ET18 offers these additional features: