Zhongyi high-precision anti-burning smart multimeter, counting digital multimeter, with DC and AC voltmeter and ohm-volt-ampere tester; measure voltage, current, resistance; test live wire, continuity Multifunction Digital Multimeter - Accurately measure AC/DC voltage, DC current, resistance and diode/transistor. This multimeter is a very useful tool for solving industrial and household electrical problems. Ideal for household sockets, fuses, batteries (including vehicles), automotive circuit troubleshooting, charging systems, automotive electronics testing, and more. Accurate Troubleshooting - This multimeter has a sampling rate of 2 times per second; built-in backlit LCD display with 3 digits (1999 counts) 0.6 inches, high polarity, including positive and negative readings. Keep it safe - Dual ceramic fuses prevent burnout and prevent overloading. The silicone cover protects the multimeter from malfunction and prevents electric shock. When the battery is low, a low battery indicator is displayed. EASY TO USE - Supports data hold, low battery indicator and continuity buzzer. Includes handy features like an LCD backlit screen for easy use in dimly lit areas. Additional Tip - This multimeter is designed to safely and accurately solve a variety of automotive and home electrical problems. If you want to make some home or business improvements, it's a suitable tool for both DIYers and hobbyists. Power supply: AAA battery (battery not included )