Enhance your remote control capabilities with this advanced GSM Remote Control Relay Switch, designed for reliable and flexible operation in diverse environments. Constructed from durable aluminum material, this relay switch offers robust stability and long-lasting performance. Featuring four relay channels with selectable 10A or 15A output logic, it provides versatile control options to suit various applications. Key Features: · **Advanced Functionalities:** Equipped with power loss detection, 4G network remote control, temperature and humidity monitoring, and power outage alarm functions, ensuring comprehensive management and real-time alerts. · **Multi-Channel Sensor Support:** Includes two temperature and humidity sensor ports, supporting accurate environmental monitoring with a wide detection range (-40 to 125℃ for temperature and 0 to full for humidity). · **Flexible Relay Output:** Four relay channels support both Normally Open (NO) and Normally Closed (NC) output logic, accommodating different wiring and control requirements with 10A or 15A load capacity. · **Seamless Connectivity:** Compatible with standard SIM cards and supports extensive 4G LTE FDD bands (B1, B3, B5, B7, B8, B20) as well as GSM frequencies (900/1800MHz), enabling stable network access and remote control via mobile app or web interface. · **Durable Aluminum Construction:** The sturdy aluminum casing ensures enhanced heat dissipation, durability, and resistance to wear, making it suitable for continuous operation in various settings. · **Low Power Consumption:** Efficient power usage with standby consumption at 12V 50mA and maximum working current at 12V 200mA, optimizing energy efficiency without compromising performance. Specifications: · Item Type: GSM Remote Control Relay Switch · Material: Aluminum · Weight: Approx. 433g / 15.27oz · Power Consumption: Standby 12V 50mA, Max Work 12V 200mA · 4G Frequency (LTE FDD): B1, B3, B5, B7, B8, B20 · GSM Frequency: 900/1800MHz · SIM Interface: Standard SIM Card · Antenna Interface: Standard SMA Interface · Temperature Sensor Ports: 2 · Temperature Detection Range: -40 to 125℃ · Humidity Detection Range: 0 to Full · Output Logic: Normally Open (NO) and Normally Closed (NC) · Relay Output: 4 Channels, 10A or 15A Package Includes: · 1 x GSM Remote Control Relay Switch This GSM Remote Control Relay Switch combines advanced monitoring, versatile relay outputs, and reliable network connectivity in a durable aluminum housing, making it an ideal solution for remote environmental control and automation in industrial, agricultural, or residential applications.