Features Backlight Controlling: Easily toggle the backlight on or off with a simple button press, ensuring clear visibility in any lighting condition. The backlight state is automatically saved when powered off. Data Storage Function: Automatically saves the last test data in case of a sudden power failure, eliminating concerns about data loss. Large LCD Display: Enjoy a wide viewing angle and clear visibility, even in dark environments, thanks to the bright green backlight. Compact and Portable: This voltmeter ammeter is conveniently sized to fit in your pocket without adding extra bulk, ideal for on-the-go use. Direction Indication Function: Equipped with reverse and forward current and energy consumption direction indication functions for added convenience and accuracy. Specification: Item Type: DC Digital Meter Material: ABS Voltage: Measuring Range: 0-300V (independent power supply DC 5-12V) / 8-300V (direct power supply) Display Format: 10v display, for example: 1.00V 100V display, for example: 10.0V ≥100V display, for example: 100V Initial Measurement：0.05V Accuracy: ±1% Current: Measuring Range: 0-300A (50A, 100A, 200A, 300A type can be selected) Display Format: ±10 A display, for example: ±1.00A ±100 A display, for example: ±10.0A ≥±100 A display, for example: ±100A Initial Measurement：0.02A Accuracy: ±1% Power: Measuring Range: 0-90KW 10W display screen, for example: 1.00W 100W display, for example: 10.0W 1000W display screen, for example: 100W 10000W display, for example: 1.00kW ≥10000W display, for example: 10.0KW Initial Measurement：0.1W Accuracy: ±1% Energy Consumption: Measuring Range: ±0-999kWh ±1 kWh display, for example: ±100Wh ±10 kWh display, for example: ±1.00kWh ±100 kWh display, for example: ±10.0kWh ±1000kWh display, for example: ±100kWh over will keep the data unless you reset it yourself. Initial Measurement：1WH=0.001KWH Accuracy:±1% Package List: 1 x Electric Meter 2 x Test Lines Package List 1 x Electric Meter 2 x Test Lines