Fire Alarm with Buzzer and Water Sprinkler System

1int Pump=8;
2int Buzzer=4;
3int Sensor=12;
4void setup() {
5  Serial.begin(9600);
6  pinMode(Pump, OUTPUT);
7   pinMode(Buzzer, OUTPUT);
8   pinMode(Sensor, INPUT_PULLUP);
9   
10}
11
12void loop() {
13
14  if(digitalRead(Sensor)==LOW)
15  {
16    Serial.println("Flame  Detection!!");  
17    digitalWrite(Pump,HIGH);
18    digitalWrite(Buzzer,HIGH);
19    delay(1000);
20//    digitalWrite(Pump,LOW);
21//     digitalWrite(Buzzer,LOW);
22//    delay(1000);
23   }
24   else
25   {
26      Serial.println("No dangerous!");  
27      digitalWrite(Pump,LOW);
28      digitalWrite(Buzzer,LOW);
29      delay(500);
30   }
31   }