We Offer Home Security Alarm System. 1.english Language Sms and Voice Reminder, chinese/russian are Optional 2.each Zone Has Independent Arm/disarm Functions 3.2 Wired Zones and 12 Wireless Zones 4.with 3 Relay Outputs to Control Your Home Appliances 5.with Voice Reminder When Users Operate the System 6. Works with External Microphone 7. Works with External Speaker 8.automatically Send Sms to Remind the User When the Gsm Signal Becomes Weak 9. Work with Wired & Wireless Sensor 10. Each Wireless Zone Can Use Countless Wireless Sensors 11. Users Can Pre-record a Voice Message in the System and Playback when System is Alarmed 12.send Sms Text to 3 Mobile Phones and Auto-dial 3 Phones to Inform the User 13. Users Can Use Any Phone to Listen What is Happening Inside the Building Where the Alarm is Installed. 14. Program and Control the System By Keyboard, Remotes, Sms or Phone 15.send Sms to Inform Users Which Zone is Alarming and Will Call Users When the System is Triggered16.uses Sms to Change the Zone Name & Content 17. Use Sms to Inquirythe System Status Wherever ã?â¢?? with Passwordprotection, System Will Inform Users When An Incorrect Password is Tried 3times 18.use Any Phone Tocall the System and Anyone Inside the House -can Talk to You Through Aspeaker. 19. Wireless Emergencyfunction (24 Hours Zone) 20 with Backuprechargeable Battery, System Can Work Even if There is a Power Isfailure. 21. Send Sms to Informyou When There is a Power Failure or Returns Tonormal. 22.when Gsm Signal Isweak or There is No Signal, It Will Send Sms or Sound the Siren to Informusers specification a) Gsm Networkfrequency Standard: 900/1800mhz, 850/1900mhz Optional b) External Powerfailure Alarm: Start-time: Less Than 1s c) Alarm Responsetime Less Than 10s (gsm with Normal Signal) d) Powerrequirements: Ac110v~220v 50hz or 60hz standby Lithiumbattery: Dc7.4v, 700-800ma, 4000ma Optional standby Batteryworking Hours: More Than 10 Hours, 4000ma for Over 3days relay Contact Output1&2: 7a, 240vac;10a, 125vac; 10a, 28vdc relay Contact Output3: 3a, 120vac;3a24vdc e) Workingconditions Operating Temperature: -20 To60ã?â¢?? humidity: Ã?â¢?ã?â¤95% f) Wirelessfrequency: 433mhz