Description:
NAME:Diamond selector tester
Color: Black
Initial warm-up: ~ 20 sec
Indicator: Audio and LED lamps
Testing Capability: Diamonds/ Diamond simulation (e.g. CZ)/ Metal
Powered by DC 9V battery x 1 ( Not included )
Dimension: about 16.0 x 4.0 x 2.2cm
This ""Diamond Selector II"" has a highly compact design and will help you to tell the difference between a genuine diamond and fake diamond. The cost is not even a fraction of the cost of a diamond, and you will gain piece of mind by knowing that you are buying a real diamond, instead of a cheap knockoff. This tester comes with a leather bag and small testing tray for holding loose stones.

Features:
LED light and audio result indication.
Accurate and reliable reading.
Diamond indicator will be showed if the stone is a REAL diamond (Green light) Metal alert (continuous buzzing sound when user accidentally touches metal rather than stone )
Large / small switch for testing diamonds +/ - 8 points
Simple calibration for stones of various sizes.
Easy to use even for a new beginner
1. The thermal conductivity meter is an electronic instrument designed and manufactured according to the thermal conductivity of diamonds to identify the true and false of diamonds.
2. This instrument is a precision electronic instrument, the use environment is 5-35 degrees Celsius, and the air relative humidity is 80%.
3. The tested gemstone must be clean, dry and at room temperature.
4. Pocket portable handheld.
5. Non-destructive testing, easy and accurate operation


Operating methods:
1. Open the power, the power indicator light, instrument began preheating, after a few seconds instrument can be used.
2. Take the naked drill to be tested into support tray appropriate sunken hole, and its mesa upwards. Those already inlay need not put tray hole in, you can use hand to hold it.
3. According to the weight of the tested diamonds and measuring the temperature place to move several bright leds.
4. Take down needle sheath, handhold instruments, the right index finger touch the conductive plate on the back cover of instrument. To make the probe vertically and gently contact with mesa of measured diamond.
5. Carefully watching the instrument, if the rest of the emitting diode light reflect yellow, when light place moves to nine diodes with accompany beeping, this explains those tested are for real diamonds. On the contrary, if light place moves to insufficient nine diodes, and without accompany beeping, this explains fake diamond or counterfeit.


Package Content:
1* Diamond selector tester
1* Testing Platform（Diamond Support）
1* English user manual
1* Leather case
1* Outer packaging