First one I ordered didn't work. There were actually two different things wrong with it. The primary problem was that the electronics were 'screwed'. Even after calibration when the unit was sitting flat and level and giving me a "0.00" reading, when I turned it off and back on again it would read some ridiculous number like 16.73°. In addition, the horizontal bubble level was off by almost a degree. However, I so much wanted this digital level to work because it had all the features I was looking for...like upside down the digital readout flips so you can actually read it! Waterproof, selectable display units, etc.
So, I requested a replacement from Amazon which came two days later. This one works just fine and the bubble levels are right also. I would have probably lived with the bad bubble level on the first unit - if it worked electronically but thankfully, the replacement unit is good.
Note well, if they made a unit just like this one but had accuracy of less than 0.1 degrees full scale, I would buy it even if it were a little more expensive but with the accuracy of 0.05 degree at zero and 0.2 degree full scale I'm not complaining. That will do. My initial project for this level is to aid with the installation of drain lines. For THAT a reasonably accurate digital level is an absolute must. And, after using a friend's digital level where the LCD display doesn't flip when it's upside down - wow what a pain that is...this will make the job much, much easier. Note well, I'm crawling around under a home in Florida where there is less than 2 feet of space...trying to get into a position where you can read a digital level that does NOT have the bright LED display that this unit has and the flip readout is incredibly difficult. This level will be great! Furthermore, I meticulously checked the readings when you set the display for "inches/ft" and, the calculations are dead on.
Of course, the real praise goes to Amazon with their a to z guarantee. Amazon comes through again! Needless to say, if it wasn't for Amazon this product would not have 5 stars! I have to assume that 'x' percentage of these units are bad. So, if you are willing to go to the trouble of having a unit replaced if you get one that isn't good...this is a great level and Amazon makes it all work. In effect, Amazon is serving as the quality control department for Digi-Pas. Obviously Digi-Pas quality control department needs to get their act together. On the other hand they DID design a great digital level.
#1 The Digi-Pas DWL280PRO has a bright readable LED display. An arrow indicates whether the left side is high or low.
#2 Numerals are crisp and clear and bright - perfect for low light areas
#3 You can convert the display from degrees to in/ft or mm/M or % slope
#4 Bubble levels are perfect
#5 When the level is upside down such as on the bottom of a pipe, the display 'flips' so that it is still easily readable.