Enhance your environmental monitoring and security setup with our comprehensive GSM 3G 4G Temperature Humidity Alarm, designed for robust performance and seamless connectivity: Support a Variety of Networks: This advanced alarm system utilizes GSM, 3G, and 4G network communication, providing you with unrestricted access and control from anywhere. Monitor your environment without the limitations of distance, ensuring constant connectivity and peace of mind. Monitoring Voltage: Featuring a built-in microprocessor, the alarm host monitors power supply voltage values within a range of 0 to 36V. This eliminates the need for additional professional voltage probes, simplifying installation and reducing costs while maintaining precise voltage monitoring. Multiple Functions: Equipped with the AM2301 digital temperature and humidity module, this system offers a composite sensor that delivers calibrated digital signal output. It supports RTU Over TCP and TCP protocols, allowing for seamless integration with cloud platforms for real-time monitoring and data analysis. Remote Monitoring: Stay informed with automatic daily or periodic status reports sent to the primary user number. This feature ensures you are always updated on current conditions. Additionally, the alarm history can be queried remotely via SMS, providing comprehensive oversight and control from any location. Extensive Alarm Capabilities: The power-off alarm supports up to 10 authorized user numbers, ensuring that critical alerts reach the right individuals promptly. The last five authorized numbers can receive both SMS notifications and phone call reminders, enhancing the responsiveness and reliability of your monitoring system. Invest in the reliability and versatility of our GSM 3G 4G Temperature Humidity Alarm for unparalleled environmental monitoring. Ideal for homes, offices, and industrial applications, its advanced features and user-friendly design make it an essential tool for maintaining optimal conditions and ensuring security.