Features - Material: ABS, electronics. - Size: About 18.00X4.50X2.50cm/ 7.07X1.77X0.98in. - Suitable for distribution box, electrical circuit, home users, diy and professional electricians and technicians. - Easy to operate, can better help you save time and energy, digital display screen, easy to read. - This multimeter has 4000 counts auto-ranging, which can high accurately measure various data. - Digital multimeter is suitable for measuring AC voltage and DC voltage and AC current, resistance, capacitance, diode, etc. - When instrument detects AC voltage, instrument buzzer will alarm, portable to use. Specification: DC voltage: Range: 0-600V; Resolution: 1mv-1v; Accuracy: (0.5%+5) AC voltage: Range: 0-600V; Resolution: 1mv-1v; Accuracy: (0.8%+5) AC current: Range: 0-400A; Resolution: 0.01A-0.1mA; Accuracy: (1.5%+5) Capacitance: Range: 0~4mF; Resolution: 0.001nF~0.001mF; Accuracy: (3.0%+5) Resistance: Range: 0~40M; Resolution: 0.1~100; Accuracy: (0.8%+2) Hz/Hz: Range: 0~400Hz; Resolution: 0.01HZ-0.001MHZ; Accuracy: (0.1%+2) Maximum display: 4000 counts. The total length of the line: 100cm. Battery: 2 x AAA batteries (not included). Automatic shutdown: Automatic shutdown without any operation for 15 minutes.