Features: MS8228 digital multimeter can test AC/DC voltage and current, frequency, capacitance, resistance and duty cycle Sound and light warning for incorrect inserting of the input plug Auto range and manual range Auto power off Data hold and back light Diode check and continuity test SKU: X1IN10300 Pls note that battery is not included in the package Package includes: 1 * MS8228 Digital Multimeter 1 * User manual