Quantity   Component name
1 × Arduino Mega 2560
1 × Ethernet ENC28J60 Module cheap arduino compatible ethernet interface
1 × 16x2 LCD with i2c interface cheap lcd module
1 × MPR121 capacitive buttons and leds managament
1 × PN532 NFC/RFIDs reader/writer
1 × SIM900 GSM module Quad-band GSM GPRS module with SIM
6 × magnetic contact Sensors for windows/door opening state
2 × double technology volumetric sensors microwave + IR movement sensors
1 × 120db external acoustic siren with 12v battery
1 × 13.8v UPS 13.8V power supply with 2,2 Ah battery
1 × small 8 ohm speaker to give user feedback sounds
1 × DHT22 Temperature and humidity sensor to send data to emon server
1 × key electric contact for enable/disable the siren
2 × In-wall mounted electric boxes
1 × Plexiglass panel
1 × Lots of connectors, cables, resistors, diodes, relays, leds....