Multifunctional ammeter-voltmeter that accurately monitors voltage, current, active power and energy for thorough analysis of electrical systems. Overload alarm system provides proactive safety by alerting when the supply exceeds safe thresholds, helping to prevent equipment damage and downtime. Large LCD display shows multiple measurements at once for clear, at-a-glance reference and easy use. Customizable threshold settings let you adjust current alarm limits to fit your specific monitoring needs. Use scenarios: - In home or small office energy systems, battery charging, or solar setups to track voltage, current, power and energy flow. - On a service bench to test and troubleshoot electrical devices with real-time measurements. - In equipment rooms or panels to monitor power usage and quickly detect abnormal conditions. Key benefits: - Clear visibility of essential electrical parameters for fast, informed decisions. - Built-in safety features reduce risk of damage from overcurrent or overload. - Flexible alarms and straightforward operation support reliable monitoring across applications.