Good Price Presidium Diamond Tester, DiamondMate-A utilizes a proven thermal conductivity testing method to instantly verify the authenticity of diamonds Purchase Now! The test results are indicated by visual lights and audible beeps.

This is Model DiamondMate-A - This model operates on alkaline (AAA) batteries or direct AC current. Batteries and AC adapter (optional).

Please choose Model DiamondMate-C to have rechargeable batteries and an AC Adapter included!

Features:

No waiting time between tests.
Pocket size.
Low batteries indicator.
Metal detector - intermittent beep.
Measured Diamond - continuous beep.
Low battery consumption.
Carrying case - standard for both models.
1 Year Factory Warranty.
Size : L-160mm (6 1/3") x W-21mm (13/16") x H-30mm (1 3/16").
Weight : 45 gms ( 1 1/2 oz.).