Amp Smart Identification: Automatically detects and measures AC/DC amperes when connected to the amp port, eliminating the need for manual switching between test modes, saving time and ensuring accurate readings VFC and Automotive Circuit Testing: Special VFC function allows precise measurement of inverter output voltage. The device also features automatic DC voltage measurement for automotive circuit testing, making it ideal for vehicle diagnostics and repairs AC Voltage and Non-contact Voltage Detection: Automatically measures AC voltage, and the V~Alert feature provides non-contact voltage detection, enhancing safety and reducing the risk of electric shock while testing live circuits Capacitance Testing: Capable of testing capacitance with precision. Remember to discharge the capacitor before testing for accurate results. This feature is especially useful for electronics and electrical component analysis Easy to Read Display: Comes with an extra-large, backlit display that ensures clear, easy reading even in low-light environments, providing a comfortable user experience for various measurement tasks Specifications: DC voltage: Range: 0~620V (DC mode), 0.8~620V (Auto mode), Resolution: 0.01V (Accuracy ±(0.8%+3)) AC voltage: Range: 0~620V (AC mode), 0.8~620V (Auto mode), Resolution: 0.01V (Accuracy ±(1.2%+5)) Resistance: 0Ω~6.0MΩ ±0.1 (1.2%+5)/ 6.0MΩ~60.0MΩ ±0.1 (2.0%+10) Capacitance: 0.5μF~6000μF±0.001 (3.5%+8)/6000μF~60000μF±0.001 (4.5%+10) DC current: 1.0~610mA±0.1 (1.5%+3) AC current: 1.0~610mA(40~1000Hz)±0.1 (1.5%+3) VFC voltage: 10V~620V±1 (4.0%+3) Temperature: 0~50℃±1 (1.5%+2) K-type thermocouple: 50~1000℃±1 (2.0%+3) Frequency: 0Hz~9999Hz±0.001Hz (2.0%+10) Diode: less than 3.0V diode shows approximate forward voltage Automatic shutdown: 15 minutes On-off buzzer: less than 50Ω, buzzer sounds and red backlight turns on Battery: 1.5V AAA *2 (not included) Fuse: Current: 630mA, Size: 20*5mm Dimensions: 140*54*33mm Weight: 92g