SAM multi-tester Magnification_Over 10X it must not be used

it must not be used for buying and selling

these are colour-grading stones for diamonds

005ct then

But we can't get it to work

not microscopes and telescopes)

SAM multi-tester Magnification_Over 10X it must not be usedSummary This is the best multi tester for working in 'extreme' conditions such as in the heat or in the cool. If you want a tester that works in the widest range of temperatures (especially if you are going to be using it in a hot country) this is the most reliable. fastest response time (test result in 1 second) left handed or right handed use thinnest probe (0. 45mm) tests stones as small as 0. 01 carat (1 point) can be used with batteries