Wireless GSM PSTN 4 Bands 850/900/1800/1900MHz Dual Net Alarm Security System with russan,english voice(if no leave any message,we will send english verison) The default wireless frequence in this sensor is 433mhz , If you want 315mhz , You should leave massage to ask 315mhz in your order. (Important) Function: * With dual network of GSM + telephone cable, the System is more secure and reliable.* With the quad-band GSM module for global use.* Includes 2 wired zones and 99 wireless zones.* Supports code pairing with 8 wireless remote controllers at the most.* LCD screen with a built-in clock.* With voice prompts for easy operations.* Supports an external intercom speaker.* Supports 3 groups of timed arming and 3 groups of timed disarming.* The main device can dial alarm calls to 6 preset phone numbers.* The main device can send text alarm to 3 preset phone numbers.* With 10-second manual recording function to leave messages.* With a built-in digital voice device to give voice alarm automatically.* With built-in SMS service to send alarm messages automatically.* Supports wireless alarm siren and control by wireless devices (customization).* With the One-Key-Control function, you can conduct Away Arming, Home Arming, Remote Control Arming or Off-site Telephone Arming.* Alarm Location Programming: Help, Fire, Gas Leak, Door Lock, Living Room, Window, Balcony, and Perimeter Alarm.* Includes multiple zone programming functions like Real-Time, Delay, 24 Hour, Bypass.* With Wireless Self-learning Code Pairing, new accessories can be installed conveniently, safely and effectively.* Off-site remote control allows Main Device Arming, Disarming, Monitoring, Intercom etc.* Arming Modes: Remote Control Real-Time Arming, Away Delayed Arming, Home (Stay) Arming, Timing Arming, Off-site Telephone Remote Arming.n Line Seizure: If an alarm happens, the main device will cut off the busy line and give priority to make a call for the alarm.* With a built-in 7.2V lithium battery, it can power the Alarm during a blackout.* Comply with the CCC Safety Standard and GB12663-2001 national standard.* Compatible ADEMCO Contact ID protocol (customization) Wireless Infrared Detector: 1, Standby Current: less than 12uA2, Alarm Current:less than 15mA3, Operation Temp: -10C~50C;Humidity:no more than 90%4, Installation Height: About 2M. Installation Angel:About 60~1105, Detecting Distance: 5-8M6, Transmissons Time no less than 1s7, Wireless Freq:433MHz8, Transmit Distantce:Outdoor 100M(no obsctale), Indoor:10~15M Door/Window Magnetic Detector: 1, Operation Current:8~15mA2, Quiescent Current:3uA3, Operation Freq:433MHz4, Operation Temp: -10C~50C;Humidity:no more than 90%5, Installation: less than 15mm between 2 parts.6, Transmit Distantce:Outdoor 100M(no obsctale),Indoor:10M Wired Mini Siren: 1, 110dB/m2, Wired connect to Host3, Operation Temp: -10C~50C;Humidity:no more than 90% Remote Control: Efficient frequency:315MHZ/433MHzTemperature condition: -10 degree Celsius to + 55 degree CelsiusTransmission distance: 100m(Open field)Battery:12V,23ACode type: Fixed code Package including: Main Unit x 1User Manual x 1Power Supply x 1 (According your country to ship the corret adapter to you)Remote Control x 2Door/Window Magnetic Detector x 2(not include battery)Wired Mini Siren x 1 We also have other Wireless & Wired accessories to meet your need of beefing up your alarm system, if you need them, please feel free to contact us: Alarm Accessories