Rechargeable Diamond Test Pen with UV Light, High-Precision Electronic Jewelry/Gemstone Selector for Beginners and Experts
Features of KD-MD1:
【Intuitive and Safe Operation】With an LCD display and LED indicator, our diamond tester provides accurate, easy-to-read results quickly and safely – without damaging real diamonds. Ideal for professionals, collectors, and jewelry business owners.
【Simple One-Button Testing】Simply turn on the pen, gently touch the gemstone tip, and wait for the audible signal. Real diamonds trigger a reading above 9 with both light and sound signals; no reaction indicates a fake stone like cubic zirconia.
【Adjustable Stone Size Setting】Easily adapt to different gemstone sizes with the carat adjustment button: activate 1 light for diamonds over 1.0 carat, 2 lights for 0.5 carat, and 3-4 lights for small or finely cut stones.
【Reliable Thermal Conductivity Detection】The tester uses advanced thermal conductivity to distinguish diamonds from imitations. Note: metals can trigger high-frequency sound due to similar conductivity – always follow correct testing procedures and avoid use on metal, skin, or liquids.
【Convenient and User-Friendly】Designed for ease of use with clear visual and audible signals. For best accuracy, always touch the back panel during testing and ensure proper tip contact – blinking or shutdown may indicate improper use.
Specification:
Model: KD-MD1
Working Voltage: 3.3-4.2V
Working Temperature: 10-40℃
Product Size: 158*45*21mm
Adapter (not included in this instrument)
Adapter Voltage: 120-240V
Data Cable Connector: Type-C
Adapter Power: 1A/2A
Adapter Output Voltage: 5V
Internal Lithium Battery Parameters
Model: 14500
Voltage: 3.7V
Capacity: 800mAh
Packing List:
1 x Diamond Test Pen
1x 1M USB Cable
1 x Test Platform
1 x User Manual
Features of KD-MD2:
【Intuitive and Safe Operation】With an LCD display and LED indicator, our diamond tester provides accurate, easy-to-read results quickly and safely – without damaging real diamonds. Ideal for professionals, collectors, and jewelry business owners.
【Simple One-Button Testing】Simply turn on the pen, gently touch the gemstone tip, and wait for the audible signal. Real diamonds trigger a reading above 9 with both light and sound signals; no reaction indicates a fake stone like cubic zirconia.
【Adjustable Stone Size Setting】Easily adapt to different gemstone sizes with the carat adjustment button: activate 1 light for diamonds over 1.0 carat, 2 lights for 0.5 carat, and 3-4 lights for small or finely cut stones.
【Reliable Thermal Conductivity Detection】The tester uses advanced thermal conductivity to distinguish diamonds from imitations. Note: metals can trigger high-frequency sound due to similar conductivity – always follow correct testing procedures and avoid use on metal, skin, or liquids.
【Convenient and User-Friendly】Designed for ease of use with clear visual and audible signals. For best accuracy, always touch the back panel during testing and ensure proper tip contact – blinking or shutdown may indicate improper use.
Specification:
Model: KD-MD2
Working Voltage: 3.3-4.2V
Working Temperature: 10-40℃
Product Size: 158*45*21mm
Adapter (not included in this instrument)
Adapter Voltage: 120-240V
Data Cable Connector: Type-C
Adapter Power: 1A/2A
Adapter Output Voltage: 5V
Internal Lithium Battery Parameters
Model: 14500
Voltage: 3.7V
Capacity: 500mAh
Packing List:
1 x Diamond Test Pen
1x 1 meter charging cable
1 x Test Platform
1 x User Manual