Name:GSM PSTN LCD Alarm System Model:WL1011 Basic Features: 1. Can work with wireless/wired keypad; Support USB connection with PC, do the setting through PC, remotely upgrading,etc. 2. Compact design, blue backlight, big LCD Screen Display 3. With 10 seconds voice record function 4. Can preset set 7 group phone numbers,6 group for autodialing, one group for SMS. 5. SMS control function: send SMS to arm/disarm/control siren/check alarm state power/AC power off or recover indication. 6. With 32 wireless defense zones, 8 wired Defense zones 7. Learning code, easy to add or remove extra accessories 8. Remote control thru mobile. 9. Password protection 10. Sound/Mute Alarm 11. Siren accompany sound 12. Low power consumption, backup battery lasts for at least 48 hours 13. Time delay to arm/alarm 14. Voice Instruction 15. Leave-Ground Alarm Function 16. 100 historical alarm records 17. Support 5 wireless doorbells 18. Separately arm/disarm each defense zone 19. Low power consumption 20. Built in siren with 120DB 21. Ring times setting function(0-9times optional) 22. Can be set to arm/disarm at specific time Power supply: Input AC 110V; 220V; 230-240V; Output DC 9V, 500mA Frequency: 433MHz Stand-by current: 20mA Alarm current: 150mA RF output of power: 8.5mW Operating range: up to 100 meters in open air. Siren: 110dB Temperature range: -10 ~ 50 degree Relative humidity: 90%