4G Wireless Smart Relay Switch For Remote Control Lights Recommended

Feature: \n 1. Remote Control: This GSM door opener with remote on/off switch can be used to authorize calls for free calls and can be operated from anywhere, regardless of distance.\n2. Compact and Portable Design: The smart relay switch is designed for both portability and ease of use. Its compact design makes it ideal for use in everywhere.\n3. Wide Application: It can be used in industrial control and security fields, such as lights, motors, remote controls, wireless security alarms, wireless access alarms, wireless controllers, etc.\n4. Smart Control: The smart relay switch is designed to work with smart home devices, allowing for voice control and integration with other smart home platforms.\n5. Versatile Voltage Support: The Smart Relay Switch supports voltage inputs ranging from , making it compatible with a wide range of electronic devices. \n\nSpecification: \n\nItem Type: Relay Switch\n\n4G Frequency: B1 / B3 / B5 / B7 / B8 / B20\nGSM Frequency: 900 / 1800Mhz\nSIM Int: