FK408 Voice Activate (VOX) Switch with Delay Timer
Here is an ideal class room project demonstrating the use of sound as a controller in a practical application. A sensitive microphone picks up the sound and a potentiometer adjusts the sound thresh hold at which the switch operates. A 0-60 seconds adjustable timer energises the 500VA output relay for a preset time. Uses include a stairwell light control and a child’s toy switch 12V Operation
Suggested housing FB10, also available here.
Price inc GST.