Fire Alarm

int led_pin=A0;
int Buzzer=A4;
int analog_pin=A1;
void setup() {
  Serial.begin(9600);
  pinMode(led_pin, OUTPUT);
   pinMode(Buzzer, OUTPUT);
}

void loop() {
  int Val;
  Val=analogRead(analog_pin);
   Serial.println(Val);
  if(Val<130)
  {
    Serial.println("Flame Detection!!");  
    digitalWrite(led_pin,HIGH);
    digitalWrite(Buzzer,HIGH);
    delay(1000);
    digitalWrite(led_pin,LOW);
     digitalWrite(Buzzer,LOW);
    delay(1000);
   }
   else
   {
      Serial.println("No dangerous!"); 
      digitalWrite(led_pin,LOW);
      digitalWrite(Buzzer,LOW);
      delay(500);
   }
   }