2.23ct Pear Shape Tourmaline 11.5x7.5mm Wax Designing Ring Mandrel Kit ultrasound waves are directed onto

ultrasound waves are directed onto the test object

It also can test NCV(non-contact voltage)

12/24 hour switchable

Simply calibrate the meter using a known piece of 18-karat gold and touch the replaceable pen probe to a lightly filed metal surface to return results with no wait time

portable to move and easy to use

2.23ct Pear Shape Tourmaline 11.5x7.5mm Wax Designing Ring Mandrel Kit ultrasound waves are directed ontoTourmalines are found in a wide range of colours, pink, green, blue, orange, yellow, brown, black, and colourless. Bi coloured Tourmalines are also common and stones which are coloured pink to green are known as watermelon tourmaline. Tourmalines can also display cat's eye chatoyancy, which is caused by parallel fibres running through the stone.; Tourmaline is found in many countries including Madagascar, Brazil, USA, Burma, Sri Lanka, Botswana and