Draeger X-act 7000 Automatic Tube Pump. The innovative Dräeger X-act® 7000 analysis system consists of Dräger MicroTubes and an opto-electronic analysis device that lets you precisely measure gases in the low ppb range. It gives you precise results right on site, replacing slow, expensive lab analyses. It’s extremely easy to use: insert the Dräger MicroTubes, start measuring, then read out the test result.