4band GSM Dialer with Wireless Home Security Alarm

gsm device Features:  Providing 850/900/1800/1900 GSM connectivity  Simple to install/easy to maintain Allow PIN code entering and reciprocal phone-card lock  Provide optimized circuit directly connecting the exchange device  for extensions      LCD with back screen Polarity reversal signal for metering     3.5dBi gain antenna  Compatible to PABX     Suitable for call termination of ISP Incoming call reminder, time display  Specifications: Air interface standard: GSM 850/900/1800/1900 MHz Phase 2+  Sensitivity: -104dB Peak power consumption: 2W Operating environment requirements:      Temperature: 0°C - +40°C       Relative humidity: 45% - 90% Connectors: SMA antenna connector (TNC optional) Atmospheric pressure: 86~106Pka Power consumption: static≤25 mA, emission≤500 mA Antenna: Gain: 3.5dB (all directional) 12 dB(Certain/selection  Power supply:DC12V (optional Packing: Product dimension: L192x W138 x H40mm Â