it is very small:2"x2"x1.3".
it is very usefule,can be used on the car when they fix the wheel, can be used on the woodworking machine,can be used on medical purpose...
whole metal shell,2 button:ON/OFF,ZERO
water proof:IP54
3pc magnet disk on the bottom of gauge,easy to be stick on the surface.
resolution:0.1 degree
repeatability:0.1 degree
measure range:¡À
battery life:more than 2000 hours.