These do weigh things fine with the mass being displayed on the little remote pole screen HOWEVER the main screen on the device is not lighting up. The power supply with them is not the original so I suppose maybe it just needs more juice, alternatively it may no work. I have no idea and have therefore selected the "spares or repairs" condition option out of caution. As you'll see in the photos they are in used condition. There are scuffs and marks throughout and there is a LOT of dust etc below the platform, the cable which links the main device and screen is also pretty grubby etc. Please check the photos to see condition for yourself.