Quantity   Component name
1 × Arduino Uno
1 × DFRobot SIM808 GPS/GPRS/GSM Shield For Arduino
1 × DFRobot 3-Wire Serial LCD Module
1 × DHT11 Temperature & Humidity Sensor (3 pins)
1 × MQ-135 Air Quality Sensor
1 × 2-Way Relay
1 × Battery (7-23V)
1 × SIM Card
1 × Jumper wires