The AstroAI Digital Multimeter Voltmeter Ohmmeter Ammeter Multi Tester Meter is the perfect tool for any electrical job. This digital multimeter is designed to measure voltage, current, resistance, continuity, and diode. It features a backlit LCD display for easy reading in any lighting condition. The multimeter also has a data hold function to freeze readings on the display for easy reference. The multimeter is designed with a protective rubber sleeve to protect it from drops and bumps. It also has a low battery indicator to alert you when the battery needs to be replaced. The multimeter is powered by a 9V battery (included) and is designed with an overload protection circuit to protect the meter from damage. This multimeter is perfect for any electrical job, from home repairs to professional work. It is a must-have for any electrician or DIYer.