The VOX3 is an audio activated relay with a transformer isolated audio input and selectable sensitivity.
A choice of hold times (1-8 seconds) makes it a versatile unit with many applications.
The output relay contact is able to be set for normally open or closed operation.
A bi-colour status LED indicates the power and relay states.
The power input is selectable for 12Vac or 12Vdc. (12Vac plugpack supplied)