Thermal Conductivity Meter Drill Pen Diamond Tester Hardness Discriminator Selector Gemstone Jeweler Tool Expert Jeweler

Features 1 The thermal conductivity meter is an electronic instrument designed and manufactured according to the thermal conductivity of diamonds to identify the authenticity of diamonds 2 This instrument is a precision electronic instrument the operating environment is 5 35 degrees Celsius and the relative humidity of the air is below 80 3 The gemstone to be tested must be clean dry and at room temperature 4 Pocket portable handheld 5 Non destructive testing easy and accurate operation Specifications Power supply DC9V battery not included Probe material alloyDimensions 160 40 22mm weight about 130gPackage Included 1 x Diamond Tester Battery not included Note 1 It cannot be accurately measured when the temperature is lower than 10° or higher than 35°2 The detection is more accurate when used in a windless and dustless environment4 Ensure that the surface temperature of the measured object is consistent with the indoor temperature5 The surface of the tested object must be clean oily waxed and semi finished products affect the detection6 Before each test use glass after calibration 7 The surface is neat and tidy Ensure that the probe is fully in contact with the object to be detected 90° vertical7 After the test if it jumps between 5 6 for example it means that the hardness is 5 5 or 6 Detail Pictures