Diamond tester

 product manual:

1. The thermal conductivity meter is an electronic instrument designed and manufactured for the identification of true and false diamonds based on the thermal conductivity of the diamond.

2. The instrument is a precision electronic instrument with an operating environment of 5-35 degrees Celsius and an air relative humidity of 80%.

3. The detected gem must be clean, dry and at room temperature.

Technical characteristics:

1. Pocket portable handheld.

2. Non-destructive testing, easy and accurate operation.

3 working power: DC9V battery.

4. Dimensions: 160*40*22mm