So the level is quite high quality and definitely helps in many situations, especially when bending the pipeline. 3 stars for several reasons: 1- I had to have the Dremel on/off button to keep it submerged because this thing is on all the time. In my pocket, bag etc. It inevitably kills the battery sooner and the fact that the designers didn't think of it, probably knowing that this level would actually be used by a dealer in a tight toolbox/bag makes me wonder what they thought. 2- I returned one because the bubble is in different positions depending on the orientation, which isn't really good for accuracy. The 2nd I got was better in that regard. Overall the digital aspect works quite well and is accurate when calibrated correctly with the bubble. The problem with the first one I had was calibrating it and then turning off when the level was flipped due to a processing error. 5 Star IBEW Electrical Product