This Little Thing Runs on Water – No Batteries, No Wiring Headaches
Picked this up for a bathroom renovation where running power to the motion sensor wasn't really an option. Hooked it into the water line and it just works – every time someone flushes, the water flow generates enough juice to power the infrared sensor and trigger the flush. Detection range is about arm's length, so it picks up movement without being too sensitive. What I really like is that it draws almost nothing in standby, so it's ready to go even after sitting unused for days. Installation was simple – just plumbed it inline and that was it. No more swapping batteries or running low-voltage wire through walls. For anyone doing a smart bathroom project or an off-grid setup where running power is a pain, this thing's a neat solution. Build feels solid too – should hold up fine in a damp environment.