For device itself is to say: As with Fischer usual a very well-functioning barometer in excellent workmanship, which indicates the air pressure after initial calibration precision. As usual with Can / Aneroidbarometern, must nudge before reading the barometer slightly so that the cursor jumps to the correct value; that's not a mistake, but by design. And so you do not forget where the needle was previously, there's also the manually operated from the outside marking pointer.
The fishing barometer doing now as the latest access his service in the immediate vicinity of the hygrometer and thermometer from the same manufacturer and I am pleased with sufficiently accurate for normal mortals values! :-)