Duo gem tester (Presidium PDT-II) Digital scales - regular lines - resolution 0.1g yet don't want to spend

yet don't want to spend a lot of money

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

exceptionally high quality

I like it not having an extra inset lens

we change the price of these samples each week

Duo gem tester (Presidium PDT-II) Digital scales - regular lines - resolution 0.1g yet don't want to spendSummary 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