I have bought two of these and both are terrible. The magnetic base is already falling apart (the faceplate is falling off) and the magnet's force is so weak that the meter won't stay in place. The magnet cannot even support its own weight after it is switched on. Also, the dial is designed to be held on the back with a flimsy, wobbly plastic brace (rather than, say, collar fittings). Aside from not being able to install it due to the weak magnetic base, I highly doubt I would have enjoyed using this tool.