TOP 5 AMAZING $1 Aliexpress Modules
134K views · Apr 10, 2025 · Science & Technology
Comments · 126
@haydar_kir · 11 months ago
I’ve seen so many $1 products until you click on them. Then it becomes $8.
14
@arp_catchall · 1 year ago
Whats truly AMAZING is YOU: making videos every day!
15
@gcw2489 · 7 months ago
I'm enjoying the early video of the metal detector. Look how clean and new the soldering pad is! 😂
@kobedde · 1 year ago
I have been using the MQ2 sensor (almost equal) for a few years now and it still works great. I use it as a smoke and gas detector in my garage. <br>I regularly test the operation and the sensor has never failed. The only disadvantage is that the heating element uses a lot of power.
7
@Nitrowing1500 · 7 months ago
The wireless controller is the same as on my motorbike alarm from 25 years ago!
@M3rVsT4H · 7 months ago
I believe the battery level display is showing full charge. I have some automotive battery chargers that use the same monochrome symbol, when empty the shell has no bars inside. I know it's an old vid, but thought I'd share.
@TOMASZSTARLING · 1 year ago
you can plug in a battery to the in 12v adjustable power supply that's why there is a battery display
@wajid5521 · 8 months ago
Excellent
@mr.makeit4037 · 1 year ago
Very nice. First time that I have seen those dc to dc converter modules with push button voltage adjustment. Usually have the potentiometer adjustment. Now on my purchase list.
1
@RobertPyland · 1 year ago
Wow! Worth my time. Thanks.
@qwertzuiop-d9o · 1 year ago
Nice
1
@wingman57-c6v · 6 months ago
Just an FYI on this March day in 2026 the price of the DC to DC module is $5.67 with case, with $2 shipping
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