Most versatile hands-free headband magnifier, lenses 1.5X to 14X + battery light Discounts apply with the 'notches' on the

with the 'notches' on the back up to 43mm apart

Place the stone over the sensor (even if it's in jewellery) to operate the digital meter (the reflectivity meter)

- it is still 'lit' for another 5 hours but too dim to be of use

it really is quite wobbly around the edges

Also switchable to pennyweights

Most versatile hands-free headband magnifier, lenses 1.5X to 14X + battery light Discounts apply with the 'notches' on theDetails The most versatile. Five pairs of stereo lenses + one high power auxiliary lens. Used in combination these give 30 possible magnifications from 1. 5X to 14X. LED lights adjustable in brightness and position. Headband comfortable to wear for hours. Suitable for spectacle wearers. Magnification & working distances: see chart on next tab. Light: 3 X LED. Two brightness levels, adjustable in two directions. Power: 3 X AA batteries (included).