Review on EOUTIL Digital Waterproof Protractor Backlight by Johnny Bloomer

I thought I had leveled everything with a bubble level but this device really tells you that you are around most of the time. If you want to be specific, use this gadget! It is excellent. Make sure you don't freak out when you turn it on and try reading it. If it is not placed on a surface to be leveled, Erro will be displayed. This is a design limitation and you have exceeded the 30 minute tilt switch in the device. I use it with a spirit level. I placed it directly on my bubble level to extend the surface of this gauge and the measurement is accurate. Not sure about durability, time will tell. An equivalent German device will cost you $500.