A device (1) is proposed for placing a plug (17) while simultaneously checkinga correctposition alignment of the plug (17), with a holding element for fixing ahollow body(15), which has at least one first and one second opening (21, 25)； and with aplugplacement means (27), with which the plug (17) can be inserted into the secondopening(25) of the hollow body (15). The device is distinguished by a measuring head(5) that istraversed by at least one channel (11), wherein the channel (11) can befluidicallyconnected to the first opening (21) of the hollow body (15), and by a pressuresensor (3),which can be fluidically connected to the channel (11) of the measuring head(5).
