Diamond Tester Portable Gemstone 30X Jeweler's Loupe Jeweler Tool Testing Kit

Features:
[Fast Results] Newest Diamond Tester Pen, high accuracy indicate genuine 
diamond or fake. This tester designed for quick, precise, and safe diamond testing. No harm to diamonds.
[Simple Use]The diamond tester pen is simple to operate to get results. Just adjust to the 
appropriate gear, put the tip of the diamond tester on the diamond and press it gently. When testing, the probe needle and the tested object must be at a 90°angle.
[Intuitive Design]Professional tester will indicate genuine diamond or fake. The real diamond will make sound and LED light > = 9. Fake crystal, such as cubic zirconium ( CZ ), crystal, glass will be no sounds and LED lights <9.
[Jeweler Diamond Tester]This diamond tester can not only detect the authenticity of diamonds, but also detect the authenticity of jewelry. It can detect gemstones including: sapphire, ruby, crystal, agate, jadeite and other gemstones of various sizes.

Operation Methods:
1. Put the 9V battery in the tester. 
2. Take off the probe cap.
3. Turn on the switch, the power indicator is on.
4. Wait few seconds for the probe to heat up until another indicator " ready lamp" light on.
5. If you test diamond, you then need to turn on the number of lights corresponding to the indoor temperature and diamond weight.
6. If you test other gems, you'd better calibrate the probe before testing, Method: by placing the probe vertically on a piece of glass, then adjusting the light to 5, and then placing the probe on the gemstone to test.

Test Result Analysis: 
If the number of lights equals or exceeds 9, and it beeps, it means the diamond is true. 
If the lights is about 9 and it beeps, it means the sapphire is true. 
If the number is 6.5-7, it means the agate is true. 
If the number is 7-8 , it means the crystal is true. 
If the number is 6-7, it means the jade is true. 

Precautions: 
*The probe of diamond detector is very sensitive and must be protected with special care.
*When testing diamonds, the right index finger must always touch the metal panel on the back of the tester, and do not touch the panel when testing other gems. 
*Don't wear gloves. Don't detect metal. 
*Best to measure in no wind conditions. The battery temperature is lower than 10 degrees Celsius, which seriously affects the use time. The operating temperature is within the range of 10-35 degrees Celsius, and the humidity is below 80%. Please turn off the power after the test to save power. 
*When not in use, it should be sheathed. 

Specification:
Diamond Tester Dimensions: 6.1" x 1.61" x 0.28"
Testing Capability: Gemstones of various sizes(Do Not test any metal)
Color: Black
Auto Off: N/A
Initial warm-up: about 20 sec.
Indicator: Audio and LED lamps
Power: 1 x 9V battery

Package Included:
1 x Diamond Tester
1 x 30X Jeweler's Loupe & Carrying Case
1 x Test Tray
1 x Protected leather bag
1 x 9V battery
1 x user manual