Fire Alarm with Buzzer and Water Sprinkler System

int Pump=8;
int Buzzer=4;
int Sensor=12;
void setup() {
  Serial.begin(9600);
  pinMode(Pump, OUTPUT);
   pinMode(Buzzer, OUTPUT);
   pinMode(Sensor, INPUT_PULLUP);
   
}

void loop() {

  if(digitalRead(Sensor)==LOW)
  {
    Serial.println("Flame Detection!!");  
    digitalWrite(Pump,HIGH);
    digitalWrite(Buzzer,HIGH);
    delay(1000);
//    digitalWrite(Pump,LOW);
//     digitalWrite(Buzzer,LOW);
//    delay(1000);
   }
   else
   {
      Serial.println("No dangerous!"); 
      digitalWrite(Pump,LOW);
      digitalWrite(Buzzer,LOW);
      delay(500);
   }
   }