Beautifully packaged, medium rapid acquisition, processing cheap

I unpacked the device and was instantly on the noble box, in which the Pulsoxi is packed pleased (we see already in the picture).
After inserting the batteries properly welded, I turned on the device and kept into the (clean and undamaged) finger. However, it took up to 10 seconds, until I got the readings.
The readings I then with manual measurement (pulse) and a Corpuls compared 08/16 (pulse and SpO²) and there was hardly any difference, which is why you can say so far in advance, which is the sensor in order.

When opening and closing one notices but that the processing is very cheap: It always feels a little crack on the spring and just feels cheap to the plastic ago. But what can you so necessarily expect at this price ?!
Nett is the included holster, ideal or for rescue medical service, which, however, not associated with the silicone protection, by the way, easy to install and is quite solid, works because the unit is because unpack hard on and above all (The Rucht festivals Silicone stops just).

Let's see how long does the device if there are errors or whether, despite cheaper processing, reliable remains.
Then I'll update definitely.