Tomorrow, Saturday, at 10 am, the next sale on Aliexpress will end.
I made eight purchases. If you find any of them interesting, there is still a chance to buy cheaper than usual, especially if you poke coupons (https://ammo1.livejournal.com/1181320.html).
1. Vaterius. Water meter readings transmission system. 1870 rubles (took for 1670 rubles, taking into account the promotional code). I saw it on my own website elerus.ru and decided to try it.
2. Super cheap CO2 meter. $ 35.54 (took for $ 30.86 including coupon). Took a return option to see what the Chinese did for that kind of money and whether it really measures.
3. Bicycle handlebar post extension 138 mm (extends by 100 mm). $ 7.84 (took for $ 7.22 including coupon). It didn't work out with a take-off, I'll just try to raise the steering wheel 10 cm with this extension.
4. Reading Glasses. $ 1.57 (took for $ 1.39 including coupon). Alas, age makes itself felt, and I can't see it up close without glasses. These will be auxiliary glasses for use in the country.
5. 0-50V 5A power supply with shield and encoder control. $ 19.55 (took for $ 14.68 including coupon). It allows you to make a good regulated power supply from any power supply (for example, you can use a power supply from a laptop, but then the output voltage will be from 0 to 18V).
6. Pulse Oximeter 130B Black with case $ 14.83 (took for $ 13.83 including coupon) It looks like the second wave of coronavirus is approaching, I decided that a blood oxygen level meter would come in handy.
7. CO2 sensor Z19B $ 16.50 (took for $ 14.59 including coupon). This is the cheapest true NDIR sensor available. It is not very accurate, but I want to make a unit for automatic regulation of home ventilation out of it.
8. TFT screen 1.44 " $ 3.03 (took for $ 2.78 including coupon). Since there is a CO2 sensor and an Arduino, let it show the result on this screen at the same time.
I hope I didn’t buy anything extra and nothing of what I bought will be lying around like a dead weight.
© 2020, Alexey Nadezhin
For ten years I have been writing every day about technology, discounts, places of interest and events. Read my blog on the site ammo1.ru, in LJ, Zen, Mirtesen.
My projects:
Lamptest.ru. I test LED lamps and help figure out which ones are good and which are not so good.
Elerus.ru. I collect information about domestic electronic devices for personal use and share it.
You can contact me in Telegram @ ammo1 and by mail [email protected].