Features 1、Digital Multimeter: With AL smart automatic mode, the 4,000 count smart multimeter allows you to quickly switch between all measurement works. And this multimeter can automatically recognize the parameter being measured and select its desired range. It makes measurement easy, fast and accurate. 2、Wide Test Range: Able to test DC and AC voltage, resistance as well as circuit on and off, the pen multimeter also comes with wide testing range and high accuracy. 3、Non Contact Measurement: Completely safe non contact voltage test with light and audio alarm. Time saving and safe. You can measure voltage on AC wires without connecting wires, which makes line troubleshooting easier. 4、Other Functions: Supports data retention, automatic shutdown, low power indicator, backlight display, flashlight. All of these functions make the instrument more than enough for everyday use by hobbyists, car owners and home owners. Easy to use and endless DIY fun. 5、With LED Light: Independent LED light, easy to work in the dark. The battery can be replaced on the dashboard by unscrewing the bottom screw, then sliding the shell off and replacing the battery. Specification Item Type: Multimeter Pen Type Model: AN-20 Material: ABS Battery: 2 x 1.5V AAA battery, delivered without battery. Use: For DC voltage detection, AC voltage detection, non contact voltage detection, single pen live wire detection. Display: 4,000 counts. SMART Function: Auto ranging. For measurement on AC and DC voltage, resistance, circuit on and off. Live Wire Contact Recognition: Yes, with sound and light alarm. NCV Non Contact Voltage Detection: Yes, with sound and light alarm. On and Off Test: Yes, resistance <50 Ω and buzzer sounds, indicator light turns red. Data Retention: Yes True Effective Value under 40Hz-1kHz: Yes Low Voltage Indication: Yes Automatic Shutdown: Yes Flashlight: Yes DC Voltage: 4V, 40V, 400V, 600V, with 1mV resolution. DC Voltage Overload Protection: Maximum Input 600V AC Voltage: 4V, 40V, 400V, 600V, with 1mV resolution. Frequency Response: 40-1000Hz Frequency Overload Protection: Maximum Input 600V Resistance: 4KΩ, 40KΩ, 400KΩ, 4MΩ, 40MΩ, with 1Ω resolution. Resistance Overload Protection: Maximum Input 250V On and Off Test: Resistance <about 50 Ω and buzzer sounds, indicator light turns red. Overload Protection: Maximum Input 250V Package List 1 x Multimeter Pen Type 1 x Probe 1 x User Manual