Specification :

Quickly, easily and accurately determine purity of precious metals and gold karat by two weighings ( By measuring the Specific Gravity) : one with the piece in a water tank, the other normally. An internal computer does all the calculations for you. Works only for solid metal pieces without set stones.
No acid, needles, or test stones needed
Leaves no scratches or stains on your gold after measurements
Wide karat range— from 9 to 24K
Tests other precious metals such as platinum and silver
Also functions as a normal gram scale
MODEL GOLD KARAT TESTER GK-300
MEASURING RANGE 0.01~ 300g
MEASURABLE RANGE 5 ~ 300g
DISPLAY
Gold ( Low, K9, 10, 12, 14, 16, 18, 20, 21, 22, 23, 24)
Percentage ( % )
Density
WEIGHT / DIMENSIONS 1.54kg / 218 x 190 x 170mm
OPTIONS Printer AD-8121B, Airtight wind shield