Analog input timer

small issue I know one of you can helo me out with very easily. If I want the code below to only work if the analogRead has been less than two for 30 seconds what do i do?

if (analogRead(0) < 2) {digitalWrite (LEDpinStat, HIGH);}
static unsigned long timerStart = 0;

if (analogRead(0) >= 2)
    timerStart = millis();

if (millis() - timerStart > 30000)
    digitalWrite (LEDpinStat, HIGH);   // A0 has been <2 for 30 seconds or more

What you are trying to do is essentially the same as debouncing a push-button. This should get you started...

unsigned long Mark;

void loop( void )
{
  if (analogRead(0) >= 2)
  {
    Mark = millis();
  }

  if ( millis() - Mark >= 30000UL )
  {
    // Do your thing.
  }
}