FK1228

This kit a rain detector circuit, working on the water falling on to the conductive strips on the PCB, which will set off an oscillator of the transistors is to turn ON the speaker and LED. After you wiped out the water on the conductive strips surface, the Speaker and LED are turned OFF.

Technical Specification

• Power Supply : 9VDC
• Current Consumption : 28mA.
• PCB Dimensions : 2 x 1.5 in.