Perfect colleague

A prima helpers, small, light, clever. Easy to use, almost self-explanatory.
Either simple measurement and length, or in function 2 direct indication of QM number.
In addition, Pythagoras etc. Aufgabenbewälttigung. Also, the unit values, which you can then use to realize.
The timer is useful for accurate measurements without conducting its own shake.
Traction good bag could be a little more robust, because I'm curious.
All in all, highly recommended!