advantages: accuracy, fast inflation, light weight, reasonable price. light screen) if they would enlarge the letters and give them more brightness , Pressure modes of the air could be seen well on the screen, however, due to the small letters, it is very difficult in many cases in the blazing sun or winter night to see whether PSI or KPascal or anything else is written on a small screen. Also, characters like M, + and - are invisible in strong sunlight and at night, so I'm not saying that despite its light weight and speed, it's easy to use. Please make highlighted letters in your next version, do this so customers can easily read under the bright reflection of the sunlight. I hope the manufacturers take my review seriously and take these two things into account. Keep that in mind as they work on scoring the article in their next release. That's why I deducted 2 stars and gave you 3 stars Let's see if you can illuminate 3 stars in the twilight.