The GSM Relay Switch RTU5024 is a powerful GSM Relay, is a very simple device which can be used for authorized door access, controlling gates, switching of remote equipment, car parking systems. Actually the GSM Relay Switch RTU5024 can be used in places which require to turn ON/OFF your system, machines, equipment remotely with a FREE call from your mobile phone. - Authorized 200 users can open the gate at the specified time! - GSM Gate, Barrier, Shutter, Garage Door and Door Openers - Open Gate or Garage Door with a FREE call! - Remote switching machines ON/OFF with a FREE call! - Remote monitoring the Gate, Barrier, Shutter, Garage Door OPEN/Close Status! Applications: * Remote open/close swing/sliding gates, doors, shutters, garage doors, locks with a free call! * Residential: Door, gate, garage access control, electronic fan, microwave, air-conditioner control. * Industry: Remote switch equipment, for example: street lights, solar power, motor, inverter, PLC, pumps, fans, etc. * Agriculture: Remote control pumps, etc. * Business: Remote control electronic boxes, bright billboards, LED signs, etc. Features: 1. Quad-band, can work in the worldwide GSM Networks. 2. No call charges. the GSM Gate Opener/Relay Switch rejects the call from authorized number then carries out the turn ON/OFF action on the first 'ring'. 3. Multiple applications. (gates, bollards, barriers, garage doors, shutters and access doors or machines). 4. Secure using caller ID for identification, unknown callers are ignored. 5. Can be operated from anywhere, no distance limit. 6. Add or remove users by SMS Text command. 7. No need to provide a remote control or keys for different users. 8. Up to 200 authorized phone numbers can be configured at the specified time. 9. One output with relay rating 3A/240VAC for connecting the switch of the door or machines. 10. The relay action will return a SMS confirmation to the owner or authorized call in number, this function is editable by user. 11. The relay close or open time is programmable. 12. Based on GSM network, applied to many applications. What Applications does the GSM GPRS Relay Switch RTU5024 suitable for? - Cabinets or stations of Telecom company - Cabinets or stations of traffic origination - Cabinets or stations of power supply company - Home and garage owners - Business companies - Hotels - Warehouses - Parking places - Hospitals - Other place need remote switching applications Packing List: 1. Main Unit (1 PC). 2. GSM Antenna (1 PC). 3. User Manual (1 PC). SIM CARD must be purchased from a local cellphone provider