What is it?
A hands-on soldering kit that builds into a functional ultrasonic distance measurer (0-270cm range) with real-time digital display, LED visual alerts, and adjustable buzzer alarm (triggers at customizable distances).
Features:
✅ Adjustable warning distance
✅ Learn while building: Clearly labeled PCB with Paper Manual in English for soldering
✅ HC-SR04 sensor – great for robotics/STEM
Ideal for makers, students & tinkerers.
👉 Deal link:
https://www.icstation.com/ultrasonic-ranging-alarm-sr04-ultr…
Free Shipping for Order Over US$20~A$31.1
Handy for those that can't park their car…..