(06 Jun 2021, 21:10 )no smile Wrote: [ -> ]42cm of work distance? That’s pretty good
The company sells professional dentist equipment. There are better devices:
https://s.click.aliexpress.com/e/_AVEvM7 (up to 6x magnification) 4-5 times more expensive, though...
(20 Nov 2021, 00:41 )Like Ra Wrote: [ -> ] (12 Nov 2021, 01:22 )Like Ra Wrote: [ -> ]https://s.click.aliexpress.com/e/_9Iw3Sj
The monitor arms have arrived! Took a week. Haven't assembled them yet, but they are heavy!
The first one went to my wife's monitor. Ordered two more! 😆
I recently watched a documentary on national TV about pollution measuring devices included in the EU network of certified surveyors. Each device for measuring one type of particle in dedicated "pollution measurement station" (we have it several n my town) cost 10,000 + euros.
The documentary was triggered by wrong pollution data for some EU cities posted by some seller of similar equipment like yours. So, be careful with readings of that device.
In my city/country, we have EU accredited institute for pollution measurement, and measured data is public, published on a web site.
It's all about expectations. I do not care if the result is, say, 5% off. 20 degrees, 21 or 19? Not a big deal, e.g., if you sit next to this device, it will show 1 degree more. What's more important is the tendency. I closed the window - the level dropped or increased? I turned on the heating, what happens?
10,000 euro devices can measure up to 0.001%, what for me makes no sense.
(03 Dec 2021, 00:03 )Vixien Wrote: [ -> ]we have EU accredited institute for pollution measurement
Do they have any measurements related to my living room? 😉