Review on π 2 Pieces Waterproof DC-DC Buck Converter Module 12V to 5V Adapter Compatible with Ring Alarm Keypad (Micro USB) by Jeffery Pricinoc
Proper nutrition ring keyboard!
Does the job it is supposed to do as a ring power source for keypads from an existing wired security alarm keypad. Acts as a permanent power supply over existing cables, reducing power to the level required by the ring system. Never worry about charging batteries or exposed keyboard cables again. Very easy to wire knit!
- Free for educational purposes
- Not bad, but...
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