Quick and accurate verification : the high-precision gemstone tester pen features advanced thermal conductivity; This tester accurately distinguishes between real gemstones and imitation gemstones.

Application : The portable gem tester is suitable for handling any loose or mounted gemstones, as well as other jewelry and precious metal products, a convenient tool for anyone who needs quick and accurate gem testing. Easy to use: This gemstone detector comes with a warning and sound. When the light is on, it can emit a sound, making it easier to distinguish gemstones from other gems.

Warning : The gemstone tester works by measuring the thermal conductivity of an object. Be sure to test according to the correct testing procedure, avoid using the tester on unsuitable items (metal, leather, water, etc.) to ensure accurate test results. Any improper operation may affect the accuracy of the test.

Compact and easy to use : This small, portable gemstone detector fits in any wallet or backpack and is simple to operate. Just place the probe vertically on the object being tested and press the button to obtain results.

Gemstone Tester Specifications

Specification	Details
Item Type	Gemstone Tester
Material	ABS
Weight	Approx. 140 g / 4.94 oz
Working Temperature	10°C – 40°C
Product Size	Approx. 158 × 46 × 22 mm / 6.22 × 1.81 × 0.87 in
Data Cable Plug	Type-C
Battery Type	Built-in Lithium-ion Battery
Battery Model	14500
Battery Capacity	500 mAh

How to Use:

Preheat the device for 30 seconds after turning it on.
The device will automatically shut down if not used for 10 minutes while plugged in.
When holding the device, be sure to touch the conductive plate on the back with your fingers (accurate measurement cannot be made without touching the plate).
Refer to the instruction manual for more details.

Package List:

1 × Gemstone Tester
1 × Connection Cable
1 × Accessory
1 × Instruction Manual