Ideally the Atmos Jewel vaporizer can be used for dry herbs as it allows of it, but it was not designed specifically for it. The Jewel vape has a powerful ceramic heating chamber, but it has a direct heat coil that would make this vaporizer a Conduction heat method, which brings it close to combustion. Ideally you would want to go for a Convection heating method, as it works as an oven, and the indirect heat heats-up/vaporizes the herbs to extract the materials as wanted. If you want a great true vaporizer pen, go for the Atmos RX Boss, but it is only for dry herbs. If you want both, wax and dry herbs, than go for the Atmos Astra:
See here:
http://www.vaporplants.com/atmos-orbit-vaporizer-atmos-astra-portable-vape-for-dry-herb-wax-oil