Versatile multi-function voltage monitor that protects equipment, preserves settings, and improves system reliability. Key benefits Protects equipment from over-voltage and under-voltage by allowing precise upper and lower voltage limits to be set and monitored. Prevents loss of custom settings with automatic parameter storage that saves all configuration data after power loss or restart. Improves system efficiency and reduces wear with feed delay and disconnect delay functions that prevent rapid cycling and avoid unnecessary switching. Supports multiple applications with five built-in monitoring functions to meet different operational requirements. What makes it useful Solves common power problems: avoids damage from voltage excursions, prevents unexpected shutdowns, and keeps your configured behavior intact after outages. Reduces maintenance and downtime by minimizing false trips and component stress through timed delays. Stands out for practical reliability: combines precise control, retained settings, and delay logic in a single device for consistent performance. Functions and attributes Five monitoring modes/functions for versatile application (supports a range of voltage control needs). Automatic parameter storage: all user settings are saved to prevent data loss. Feed delay and disconnect delay: configurable delays to optimize switching behavior and protect connected equipment. Precise voltage control: set both upper and lower voltage thresholds for accurate monitoring and response. Designed for straightforward integration with electrical systems that require voltage monitoring and protection. Built with durable components to deliver stable performance in regular operational environments. Typical use scenarios Solar battery systems: maintain battery health by disconnecting loads at a low-voltage threshold and reconnecting after a controlled delay, with settings retained through power cycles. Mobile power setups (RVs, boats): protect batteries and sensitive electronics from voltage spikes or deep discharge while keeping your chosen settings saved. Industrial and workshop equipment: prevent motor or control damage by enforcing strict voltage limits and using delay functions to avoid frequent start-stop cycles. Who this is for Electricians, installers, and system integrators who need reliable voltage control and retained configuration. Operators of battery-backed systems, renewable energy setups, and equipment that must be protected from voltage fluctuations. Includes Multi-function voltage monitoring with five selectable modes. Automatic storage of all configuration parameters. Configurable feed delay and disconnect delay functions. Adjustable upper and lower voltage limits for precise control. Reliable, practical voltage protection that preserves settings and reduces equipment stress without adding complexity.