Gold Tester, Silver Tester And Platinum Tester 6-24 Karat Tests GOLD Content from 6-24K. SILVER from 85-100% and PLATINUM from 90-100% Tests Yellow, Wite, Red and Green gold. Distinguishes between gold plated and gold-filled items. Doesn't require calibration with each use and capable of 1000+ clear clean tests per cartridge. INCLUDES Owner's Manual, Carrying Case, Display Unit with Testing Plate, 3 AAA Batteries, GLX-Next Sensor, Tube with Pink Test Liquid, Sensor for Silver, Silver Testing Solution, Wire Connector, Eraser, Fine File and Sensor Tip CleanerManufacturer's repair or replacement warranty two years. Two years manufacturers repair/replacement warranty.