Description: 【Multi Function】:The Multimeter accurately measures voltage, current, power, energy, time, and resistance for comprehensive electrical measurement 【Voltage Alert】: Features a voltage report function with customizable thresholds; backlight and alert notifications activate when limits are exceeded 【Overload Protection】: Digital Voltmeter Ammeter with overload reporting; set your own threshold to receive instant backlight and power alerts for enhanced safety 【Data Retention】: Automatically saves measurement data even after power off, ensuring no loss of important information during outages 【User Friendly】: Includes a convenient reset button for energy and time readings; clear backlit display ensures easy viewing in any lighting condition Size Chart: 6.3cmx6.3cmx2.2cm/2.48inchx2.48inchx0.87inch Package Includes: 1 Digital Voltmeter Ammeter Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.