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).