Tecalemit DE/9750/ LAPTOP Â Mobile brake tester, surface mounted 20,000kg axle weight, eliminating the need for groundwork so the equipment can easily be moved between locations and quickly set up to carry out testing. The DE/9750 is simple to use and upon completion of testing produces a printed report detailing the information required by DVSA in the UK. Ideally suited for fleet operators carrying out periodical testing of their vehicles and for servicing facilities conducting diagnostic testing or post-repair testing of vehicles.