Enhance your home or business security with the GSM-KEY-4G Remote Access Controller, a cutting-edge solution that leverages cellular network technology for reliable and convenient door access management. This system is perfect for those seeking a robust and flexible security solution. Advanced Cellular Network Security The GSM-KEY-4G system operates on a cellular network, utilizing caller ID to authenticate and open doors. When an authorized number calls, the system identifies the caller and automatically grants access, ensuring secure and seamless entry. Global Connectivity Equipped with an industrial-grade 4G engine, the GSM-KEY-4G functions like a standard 4G phone. With its built-in 4G module, it can operate worldwide through 4G, 3G, and GSM networks, providing unmatched flexibility and reach. Comprehensive Access Management This system can store up to 200 authorized numbers, allowing extensive access control. It verifies each call against its memory list before granting access. Additionally, it supports power failure alarms for rechargeable batteries (battery not included), offering peace of mind and operational reliability. Unlimited Remote Access Unlike traditional remote controls, the GSM-KEY-4G allows you to open doors from virtually anywhere, even from another city, using your mobile phone. This feature eliminates waiting time and enhances convenience, making access truly remote. Cost-Effective Operation The system includes two independent relay switches. When you dial its mobile number to activate Relay Switch No.1, it rejects the call without answering, thereby opening the connected device without incurring call charges. This functionality ensures efficient and cost-effective operation. Choose the GSM-KEY-4G Remote Access Controller for a secure, versatile, and cost-effective solution to manage entry points. Whether for residential or commercial purposes, this system offers the advanced features and reliability needed to safeguard your property with ease.