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calibration weights included
none of these testers will distinguish natural stones from synthetic stones
today used for weighing powder for ammunition or catalysts
these are colour-grading stones for diamonds
UV torch 15W + 2660 battery (W2-1) + charger( F10-20) Diamond and Moissanite testers 2 calibration weights includedSummary An exceptionally powerful specialist UV light, 15W (yes, fifteen not five). This is a bit 'over the top' for banknotes, stamps, antiques etc. (it will work fine with these, so if you want the absolutely most powerful, go for it!) Its main uses are for urine detection and contamination detection. For contamination: a pharmaceutical lab. bought several of these. They steralise their equipment, but they can never be certain as to how clean it