FK408 - Sound Activated Switch With Timer Action

This circuit is a circuit which use human voice to turn it on. The
"on" duration can be adjusted between 1- 60 seconds. This voice
activated timer can turn on any electrical appliance that use 220/240 volts.

Technical data
- Power supply : 12VDC.
- Electric current consumption : 60mA. (max.)
- Adj. sensitivity: trimmer potentiometer
- Contact load : 5A@220VAC
- IC board dimension : 2.49 in x 2.15 in