Enhance your remote control capabilities with this advanced 4G Relay Switch Controller, designed for seamless APP and web-based management. Crafted from durable aluminum material, this multifunctional controller supports 4G LTE connectivity, eliminating the need for WiFi and enabling reliable remote operation anytime and anywhere. Integrated with a temperature and humidity sensor port, it intelligently triggers the relay switch based on environmental changes, providing smart automation for various applications. Key Features: · **Multi-Functional Remote Control:** Easily manage the electromagnetic relay switch via APP or web interface, offering flexible and convenient remote operation. · **Temperature and Humidity Coupling:** Connects to a temperature and humidity sensor to automatically activate or deactivate the switch based on real-time environmental conditions, enhancing automation and energy efficiency. · **4G Network Connectivity:** Utilizes 4G LTE frequency bands (B1, B3, B5, B7, B8, B20) for stable communication without relying on WiFi, ensuring uninterrupted control over long distances. · **Durable Aluminum Construction:** Built with high-quality aluminum material, providing excellent durability and stability for long-term, reliable performance. · **Power Off Alert Function:** Sends SMS notifications during power outages, allowing you to monitor and protect your connected equipment proactively. · **Wide Compatibility:** Supports standard SIM cards and features a standard SMA antenna interface for enhanced signal reception. · **Comprehensive Environmental Monitoring:** Temperature detection range from -40°C to 125°C and humidity detection range from 0% to 100%, suitable for diverse monitoring scenarios. · **Flexible Output Logic:** Supports both always open and always closed output logic modes to suit different control requirements. Specifications: · Item Type: 4G Relay Switch · Material: Aluminum · Weight: Approx. 297g / 10.5oz · Model: SM2 WLTE EC · Power Consumption: Standby 12V 50mA, Maximum 12V 200mA · 4G Frequency (LTE FDD): B1, B3, B5, B7, B8, B20 · GSM Frequency: 900, 1800 MHz · SIM Interface: Standard SIM card · Antenna Interface: Standard SMA interface · Temperature and Humidity Interface: 1 sensor port · Temperature Detection Range: -40°C to 125°C · Humidity Detection Range: 0% to 100% · Output Logic: Always open, always closed Package Includes: · 1 x 4G Relay Switch Controller This 4G Relay Switch Controller combines robust construction, smart environmental sensing, and versatile remote control capabilities, making it an ideal solution for industrial automation, smart home systems, and remote monitoring applications. Ensure efficient and reliable control of your devices with this innovative and user-friendly relay switch.