The GSM SMS Controller-Alarm is a very simple device which can be used for authorized door access, controlling gates, switching of remote equipments, car parking systems. Actually the GSM SMS Controller can be used in places which require turning ON/OFF your system, machines, equipments remotely with a SMS text from your mobile phone and protect your assets. Moreover, the GSM SMS Controller-Alarm with 8 digital inputs, when any one of the inputs triggered, will start the siren or switch on the light automatically. in the meanwhile, the GSM SMS Controller will send SMS Alert the to owners immediately. This is very useful if you need protect your assets with low cost solution. The GSM SMS Controller-Alarm suitable for below applications: 1. Security Alarm System applications; 2. Supervision and monitoring alarm systems; 3. Automatic monitoring system; 4. Vending Machines security protection; 5. Pumping Stations, Tanks, Oil or Water levels; 6. Buildings and Real Estate; 7. Weather Stations; 8. River Monitoring and Flood Control; 9. Oil and gas pipelines; 10. Corrosion protection 11. Temperatures, water leakage applications; 12. Wellheads, boat, vehicle; 13. Energy saving, street lights control system; 14. Valve controls; 15. Transformer stations; 16. Unmanned machine rooms; 17. Control room application; 18. Automation System, M2M; 19. GSM Access Control System, GSM Gate Opener, etc. Mainly Features of the GSM SMS Controller-Alarm S150: ◆ 1 relay output (240VAC@3A) can be switched ON/OFF by sending a SMS text; ◆ 1 relay output (240VAC@3A) can be switch on 4minutes if any inputs triggered; ◆ 8 Alarm logic inputs, NC or NO and EOL is optional; ◆ 3 SMS Alert numbers and 5 auto-dial numbers can accept to the alarm message; ◆ Two-way voice communication by external microphone and speaker; ◆ Supports armed, disarmed, inquiry status, switch on or off relay output by SMS Commands; ◆ Password protected, prevents unauthorized user; ◆ Can be set up and programmed from PC Programmer by USB cable; ◆ Time stamped alarm messages; ◆ Backup rechargeable battery inside, can work for 24hours when power off; ◆ Can be operated from anywhere, no distance limit; ◆ Based on GSM Network, applied to many applications. Specifications of Mainframe Parameter item Reference scope GSM Frequency Default: 900/1800/1900Mhz , Optional: 850/1900/1800/1900Mhz DC Power supply Standard adapter: DC 12V/1.5A Power Current Max:500mA Type :50mA SIM Card Supporting 3V SIM Card GSM Antenna 50 Ω SMA Antenna interface, Cable type: Gain:3dBi cable-length:3-5meters connector :SMA Portable antenna: Gain:2dBi height: 5cm connector: SMA Serial USB Port Input Type 8 Dry Contact, NC,NO,EOL. Output Type 2 Relay Output, 240VAC@3A, Relay inside. Exterior dimension LXWXH 153x86x28mm Backup-battery 3.7V 1200MAh LI-ION Temperature range -20°C ~ +60 °C Humidity range Relative humidity 20~95% (condensation free) Weight 320g ** Electrical Characteristics @25°C