- Accurate power failure monitoring with fast response: built-in high-sensitivity sensors monitor the circuit on/off state in real time and trigger the power failure protection mechanism. Compared with traditional protection equipment, the response speed is increased by about 80%. It also supports auto-detection of incoming power return and intelligent judgment of restoration stability to avoid repeated starting and stopping due to voltage fluctuations. - Easy installation and operation: standard plug-and-socket design, plug-and-play, no professional electrician required. Equipped with LED status indicators that real-time display operation, fault, and protection status. Red LED indicates a good connection with the battery and, when lit, the red display shows the current battery voltage. Blue LED indicates connection with the vehicle diagnostic interface. - Broad applicability: Automotive battery diagnostic functionality preserves memory for automotive computer systems, multimedia, navigation, climate control, and other electronics during battery replacement. It provides temporary power by connecting to the vehicle on-board diagnostic port to ensure electronic devices are not powered down during the battery swap, saving time and effort by eliminating downtime. - Vehicle ECU data memory protection: Provides power to the vehicle ECU while the battery is replaced, preventing loss of ECU data and reducing the need to reset vehicle electronics after battery replacement.