Digital precision monitoring, voltage range 24-48V High-precision detection: Utilising advanced digital voltage detection technology, it continuously monitors voltage values in real-time to ensure accurate and stable performance within the 24-48V range, achieving high-precision voltage measurement with minimal error. Wide voltage adaptability: Suitable for common DC voltage systems such as 24V, 36V, and 48V, it covers application scenarios including industrial control, communication equipment, and security monitoring. Over-limit alarm, intelligent protection Overvoltage/undervoltage protection: When the voltage exceeds the set range, the relay will quickly act to cut off the circuit or trigger an alarm, preventing equipment damage due to abnormal voltage. Dual-colour LED indicator light: Green indicates normal voltage, red indicates abnormal voltage, making the status clear at a glance and allowing users to quickly determine the system status. Low-power design: Low power consumption and low heat generation extend equipment service life and reduce maintenance costs. Easy installation and strong compatibility Rail mounting: Standard 35mm rail mounting, convenient and space-saving. Simple wiring: Clear terminal wiring with clear markings, allowing installation without complex tools.