AliExpress unbagging joy - Digital controllers, thermostats, a pump, LEDs and more

Another thermal-overload of technical goodies from AliExpress for us to explore.

These videos are not sponsored by AliExpress. I buy all these items myself.

Here are some links to the items. These are affiliate links, but that will not affect the price you pay.
Keep in mind that these products may not meet your country's standards.
Some listings may not work for some countries and some may just be sold out or disappear.

When paying on AliExpress, let the transaction complete before leaving the purchase page as otherwise it may not go through.

The neat M452 temperature and humidity controller
https://s.click.aliexpress.com/e/_c4Vii0nV
There is a massive price variation on this. Aim for £5 to £10.
I've already made a video about this type of controller:-
https://youtu.be/3XBziYTor3M

Open frame chassis mounting thermostat:-
https://s.click.aliexpress.com/e/_c3wIenu7

DIN rail mounting panel thermostat:-
https://s.click.aliexpress.com/e/_c4BgvKI3

Posh ULKA solenoid pump:-
https://www.aliexpress.com/item/1005004528608247.html
This is a 220-240V type 1S with specific pipe adaptors - there are cheaper versions of the same brand, and even cheaper generic solenoid pumps. (sometimes called electromagnetic pumps)

The panel mounting digital temperature controller:-
https://s.click.aliexpress.com/e/_c3J6EPGb

The intriguing panel mounting universal time delay module:-
https://s.click.aliexpress.com/e/_c3457ISx

Clicky-switch light up keychain fidget toy:-
https://s.click.aliexpress.com/e/_c4kGRGR9

Pack of kettle thermal switches:-
https://s.click.aliexpress.com/e/_c3j0w4B5

The pack of "Cy490nm" cyan/turquoise LEDs:-
https://www.aliexpress.com/item/1005003810952677.html

Solar auto-darkening welding helmet insert:-
https://s.click.aliexpress.com/e/_c3XEzD2n
I bought this just to look at the circuitry. I'm not sure how good it would actually be for professional welders.




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