Diamond Tester II: The Prestige Series II Diamond Tester with state-of-the-art technology assuring quick- accurate readings to determine if a stone is a real diamond or a fake.
Features include: Automatic and manual mode. Linear display for increased information. Adjustable gain for small stone sizes. Compensation for ambient temperature. Fast warm up time ten seconds! Portable with one nine-volt battery (included). Auto shut-off with a push button switch. Unique new anti-fade circuit which compensates for stone heating. Low battery indicator for accurate readings. Multipurpose alarms: a. Beeps when ready. b. Metal alert. c. Beeps repeatedly when testing a diamond.
pen weight 100g packing weight 165g packing size 19*6*4cm voltage 9v battery warranty 1 year