Duo gem tester (Presidium PDT-II) Digital scales - regular lines - resolution 0.1g 50 return postage payable

50 return postage payable

but there isn't much room to fit stones mounted in jewellery

Please note

we change the price of these samples each week

I like it not having an extra inset lens

Duo gem tester (Presidium PDT-II) Digital scales - regular lines - resolution 0.1g 50 return postage payableSummary Bench model. A dual tester with both thermal meter and reflectivity meter. Place the probe on the stone to operate analogue meter (the thermal meter, see detail in the extra pictures). Place the stone over the sensor (even if it's in jewellery) to operate the digital meter (the reflectivity meter). You don't have to use both systems, you can choose one or the other. Includes heavy duty nylon carrying case and a PPR3 battery. Also power supply