The GPRS EPU( electrical power unit ) Monitoring Alarm System S250 is an anti-theft device special for outdoor electricity power transmission devices. It builds with industry microprocessor inside, with industry class units, suitable for Transformer anti-theft requirements, Power Transmission Equipments Burglarproof applications as well as power cable anti-theft and so on. When any cable was cut or loss, the panel will alert the owner immediately by SMS, or call, as well as to Web Based Monitoring Center. also, it will start the siren immediately. The system with intelligent designed, it can distinguish the normally power off and cut cable power off. This is very useful for power device transmission devices. The GPRS EPU( electrical power unit ) Monitoring Alarm System S250 can work with the Web-Based Alarm Monitoring center, in order to monitoring lots of units in the countryside by Wireless GPRS Network. The Web-Based monitoring center supports Google Map to display the alarm occurrence place directly. Moreover, the user can inquiry the current temperature and historical record from website at anywhere and anytime. The GPRS EPU( electrical power unit ) Monitoring Alarm System S250 supports solar panel, so when the AC Power goes off, it still can keep working well ! The GPRS EPU( electrical power unit ) Monitoring Alarm System S250 is an economical and practical solution for temperature measurement logging to Web Based Monitoring Center by GPRS in the worldwide! This is very suitable for Power Supply Companies to monitoring multipoint Electrical Power Units in regional or countryside in one control room. Functions & Features of the GPRS EPU Monitoring Alarm S250: Ø GSM/GPRS Data Transmission, no distance limited; Ø Lighting protection design; Ø Weatherproof design, with temperature compensation function for high/low temperature, waterproof for outdoor applications; Ø Programmable by USB Port or SMS Commands or GPRS from Web Based Monitoring Center; Ø Supports Arm or Disarm by SMS or Web Based Monitoring Center; Ø Power on by 220VAC from any phase of A/B/C; Ø Supports Solar Panel powered on as well as includes internal rechargeable battery that can last 24hours,when battery with low voltage will alert user by SMS; Ø Supports 8 digital inputs(NC/NO) for sensors, also supports EOL mode to prevent cut sensor wires and sensor disconnection; Ø Supports 2 output relays(250V/10A), the output relay is programmable to different alarm source; Ø Can send to 6 SMS alarm numbers, distinguish which phase and with input occurrence alarm; Ø Supports two way voice communication; Ø Supports external siren, the siren working time is programmable from 0-10minutes; Ø Supports operation logs to distinguish who operated it at what time; Ø Supports automatically report to monitoring center and users from 0-240Hours; Ø Supports time stamp for events; Ø Supports GSM interface and GSM Jammer alarm function; Ø Supports 1 Web Based Monitoring Center. Standard Package list of the GPRS EPU Monitoring Alarm S250: Mainframe X1 GSM Antenna X1 User Manual X1 Resistors X8 USB Cable x1 Specifications of the GPRS EPU Monitoring Alarm S250: Rated Voltage: 220V AC 2A Standby current: 5mA Working temperature: -35 ℃～ +80 ℃ Storage temperature: -35 ℃～ +80 ℃ Digital input: 8 (Dry contact, NC/NO/EOL) Digital Output Relay: 2 (10A/250VAC) Relative humidity: 10-90%, No condensation GSM Band: 850/900/1800/1900Mhz GSM Emission Power: GSM850/EGSM900 Class4(2W) DCS1800/PCS1900 Class1(1W) GPRS Protocol: GSM/GPRS Phase2/2+ GPRS Data: GPRS CLASS12, CS 1,CS 2,CS 3,CS 4,PBCCH,TCP/IP ACK Size: 220mmX180mmX56mm (LXWXH) Net Weight: 3.50Kg