... most competitive price. Gold Tester, XRF gold analyzer,X-Ray Precious Metal Tester,Precious Metal Tester,X-ray fluorescence analyzer/ ... fluorescence spectrometer,precision metal analyzer spectrometerX-Ray Precious Metal Tester(Model: SQ-8800, include computer) Upgrading the display ... management more convenient; In order to ensure the user security, it’s installed the automated anti-radiation device. SQ ...