Pen-probe for kee gold tester, model M509-GM Options_With light for weighing precious metals

for weighing precious metals

in its case it's smaller an neater than other diamond testers

it's handy to swing the auxiliary lens down for very close inspection

just to show you the LED lights and the filter

and it only needs to weigh down to 0

Pen-probe for kee gold tester, model M509-GM Options_With light for weighing precious metalsSummary Replacement pen probe for KEE gold tester (model M 509GM). Please check carefully that you are ordering the correct pen probe, this one is for the KEE tester only. The Kee tester was discontinued in 2025. We have pre ordered the factory's entire production. We will be taking delivery of 200 shortly (September) then another 200 in December, then that's the end, there will be no more. We anticipate that this will be enough to last until February