The series comprises the IS910.1 and the IS910.2 for use in explosion endangered areas as well as the RG910 for use in rugged industrial environments outside of those areas. The durable plastic frame supports in particular the impact-resistant and shockproof properties of the devices. They are waterproof and dustproof as well as microparticle-protected in conformity with IP68 and can withstand temperatures from -20 to 60 degrees C. Their low weight, compact dimensions as well as a hand strap at the back of the 8" tablets assure practical and secure handling.