With the volatility and high price of gold, failing to detect just a small variation in composition can be an expensive mistake. The Thermo Scientific™ Niton™ XL2 XRF Precious Metal Analyzer provides a fast, accurate, and most importantly, nondestructive method to test the purity and chemistry of all precious metals. The Niton DXL Precious Metal Analyzer quickly detects gold plating and counterfeit gold and gives you the exact elemental composition of jewelry and coins so you can be absolutely certain of the value of the precious metals you buy and sell.