Description: Features: Designed to safely and accurately troubleshoot a variety of automotive and household electrical problems. The multimeter uses 2 pieces 1.5V AAA batteries(not included)as power supply and support auto power off function to save power. Its large 4 digit(9,999)display provides accurate, easy-to-read results that enable you to complete your work quickly and efficiently. Supports continuity testing, resistance testing, diode testing. Specifications: Function Range Resolution Accuracy MAX. Value Other DC Voltage (V) 999.9mV 0.1mV ±(0.5%+3) 999.9V 9.999A 0.001A DC Current (uA) 99.99uA 0.01uA ±(0.8%+3) 999.9uA 999.9uA 0.1mA AC Current (mA&A) 999.9mA 0.1mA ±(1.2%+3) 9.999A 40Hz-1kHz 9.999A 0.001A AC Current (uA) 99.99uA 0.01uA ±(1.0%+3) 999.9uA 999.9uA 0.1uA Resistance 99.99Ω 0.01Ω ±(1.0%+3) 9.999MΩ 999.9Ω 0.1Ω ±(0.5%+3) 9.999kΩ 0.001kΩ 99.99kΩ 0.01kΩ 999.9kΩ 0.1kΩ 9.999MΩ 0.001MΩ ±(1.5%+3) Capacitance 9.999nF 0.001nF ±(5.0%+20) 9.999mF 99.99nF 0.01nF 999.9nF 0.1nF 9.999uF 0.001uF ±(2.0%+5) 99.99uF 0.01uF 999.9uF 0.1uF 9.999mF 0.001mF ±(5.0%+5) Frequency 99.99Hz 0.01Hz ±(0.1%+2) 9.999MHz 999.9Hz 0.1Hz 9.999kHz 0.001kHz 99.99kHz 0.01kHz 999.9kHz 0.1kHz 9.999MHz 0.001MHz Duty Cycle 1%~99% 0.1% ±(0.1%+2) Diode Yes Continuity Yes Square Wave Output 50Hz/100Hz/200Hz/300Hz/400Hz/500Hz/600Hz/700Hz/800Hz/900Hz/1000Hz/2000Hz/3000Hz/4000Hz/5000Hz Display (LCD) 9999 Counts Ranging Auto/Manual Material ABS Update Rate 3Times/Second Ture RMS Yes Back Light Yes Data Hold Yes Low Battery Indication Yes Auto Power Off Yes Battery Type 1.5V AAA Batteries * 2 (NOT included ) Operating Temperature 0~40℃ Humidity