GSM remote control for automatic door opener

الوصف

GSM remote control system for automatic door opener
 (Model GSM-KEY-AC) Powerful and lost cost device;
Two alarm channels for gate safety ;
Very safety with your authorized telephone number to open the gate;
Professional industrial grade GSM engine
Up to ***0 phone numbers to control ; 

Our standard products is DUAL GSM BAND at **0/***0MHz, Before order ,please confirm your working frequency. and select the right products for your project. 

What is GSM-KEY?

The GSM-KEY System is an advanced secured system that is based on the cellular network , The GSM-KEY system works with Caller ID and when an authorize number calls, the system will recognize the caller and open the gate, While it will not answer the call as the call will not cost anything.

How does it work?

GSM-KEY incorporates a professional industrial grade GSM engine that receives calls at its SIM number, as any ordinary GSM phone. You need to use any operator that operates in the **0/***0 Mhz band, that is the standard in most of the world, Just to give an example, if your SIM has a phone number *******4, that is the number you have to call to open the gate.GSM-KEY has a memory where you will store the numbers of people enabled to open your gate (up to **0) When GSM-KEY receives a call, it will check the calling number and if the number is in the list you have prepared it will reject the call and open the gate.