How to make a Rain Alarm sensor @ThomasKim

How to make a Rain Alarm sensor @ThomasKim

Uploaded June 2016 | Updated September 2026, 2 hours ago

This is a Simple Rain alarm circuit made of 3V battery, Buzzer, Transistor and junk plastics.
Rain Sensor Automatic Window : youtu.be/vkcDV-9KYcQ

How to make a Rain Alarm sensor

Bennets doubler Experiment

Jam Jar Leyden Jar (Homemade Capacitor)

How to Boost the Charging Speed of your Smart Phone (How to make a USB Booster Cable)

How to break The Electric kettle secretly

High Voltage Detector (Electrostatic Polarity Detector with increased sensitivity)

Homemade hydroelectric power generator

Laser Beam Interruption Counter

Stationary chick head

How to make a fire with battery and gum wrapper (DC Current measured)

Electrostatic Polarity Detector under AC High voltage transmission line

Homemade Dog Repeller = Fail

How to make a Rain Alarm sensor