UV LIGHT FOR COMPUTER, SHORTWAVE UV + WHITE LIGHT mw_grouped_product please check carefully that you

please check carefully that you are buying the correct pen-probe

basic - good - VERY GOOD - exceptional

so the stone must have colour

) it will be hard work

UV LIGHT FOR COMPUTER, SHORTWAVE UV + WHITE LIGHT mw_grouped_product please check carefully that youSummary Shortwave UV light (+ white light) connects to a computer (USB lead included). Plug it in, it should open itself as a 'drive', look at the image on the screen (i. e. the UV unit does not have a viewing lens). For examining gemstones, stamps and other small objects. It can also be used for sterilising small items of jewellery to make them safe from viruses but please read the explanation first. Can be switched to UV shortwave or ordinary white