D.I.Y Installation and Easy Operation PH-G2 is a D.I.Y GSM SMS home alarm system which enable to arm/disarm,program alarm numbers through text message command directly on cell phone or App on smart phones. Direct Phone Call Through the touch keypad on the main panel, users can setup alarm phone numbers, and inquiry balance money of the SIM card in alarm panel, yo can make phone calls directly and do all the operations for the system. Built-in Siren PH-G2 comes with internal siren, user can D.I.Y to setup the sirn's alarming time beween 0 to 254s 24 Wireless Alarm Zones PH-G2 comes with 24 wireless alarm zones, 6 fire alarm zones and 2 wired alarm zones, user ca add additional sensors to each of these zones as their mind. It is able to program 20 remote controllers or panic buttons for the necessary. Main functions: 1. iOS APP and Android APP; 2. Engish,Russian,German,Frence,Spanish,Chinese,etc. 3. Touch keypad, enable to arm/disarm/home mode/direct ph via keypad 4. Learning code, support 2262 (4.7M) and 1527 (330k) encoding chip 5. Two-way communication, 6. 24 wireless zones, 6 fire alarm zones, 20 remote controllers or panic button and 2 wired zones 7. Silence alarm and sounds alarm for optional 8. Setup 3 numbers for SMS, 3 numbers for calling 9. Delay alarm function (0-60 seconds optional) 10. Setup siren ringing time (0-254 seconds optional) 11. Wireless transmission for wireless siren and 2 routes wireless relays 12. Enable control the alarm via SMS and phone keypad 13. Home mode function 14. Record voice for 10 seconds 15. 10 hours standby battery, external power failure/recovery alarm function (optional) 16. Siren prompt when arm/disarm 17. SMS prompt when arm/disarm