Swissphone launch their ATEX T4 pager. Swissphone have developed their existing DE516C Ex pager and have improved it's classification from T3 to T4. This model will automatically replace any outstanding orders for the T3 variant. This model has been made available at no additional costs to the T3 variant and all existing equipment and accessories are interchangeable with the T4 version. Please note that the T3 variant has now been effectively discontinued.