For more than 20 years, Dorland have been developing and become a qualified Explosion proof mobile devices suppliers. Our mobile devices production is certified in accordance with the national ccc certification, ISO9001, ISO14001 and ISO45001 and in protection class IP68. We are able to react quickly and flexibly to market trends and customer wishes. We provide a wide range of very durable mobile devices using intrinsically safe technology, as well as various no-contact detection techniques. Our wide range of serial products, as well as numerous customized solutions are for customers who work in dangerous and hazard areas include petroleum, offshore, chemical, natural gas, oil tank, pharmaceutical, bulk &powder, mining, mining chemicals, metallurgy industries.