Unfortunately, I had tried many devices, until I have a (this) found that reproducible, plausibele readings supplies. That seems also to me because other people with other devices had better results (low with better I do not mean :-)). Measuring success quickly (during inflation), I would say good midfielder. 90 values can be stored and read out via USB are very practical. The software is quite good. Values can be displayed graphically in different ways and also be exported as CSV. The batteries (and rechargeable batteries with me) keep pleasantly long (they have not changed in 4 months). The included carrying case is handy. Unfortunately, the device comes in sometimes on its own lot, if one considers unfavorable and gets his knob. Oh, and a guest mode is also available, then although measured, the value is not stored. Also very practical.
