With 2 modes of operation, the Diamond Tech Pro can test the smallest diamonds with complete accuracy. Automatic mode requires no adjustments. Easy-to-use manual mode gives added environmental and stone size controls. Adjustable gain for small stone sizes other diamond testers will fail to test.
Easy-to-read linear display. Features fast warm-up time, low battery indicator, automatic shutoff, metal alert alarm and audible diamond signal.
Operates on one 9V battery. Seven-year limited manufacturer’s warranty. Made in USA.
