Introductions: This is an Auto-ranging digital multimeter using double-integral style A/D transform as the core. It can be used to measures AC/DC Voltage, AC/DC Current,Resistance, Capacitance, Diode and Continuity testing, Temperature, Frequency etc. They are battery powered. They are characterized by stable function and high reliability, with the features of overload protection and Large LCD display for clear reading, are an portable tools for factory, radio fans and family use. Features: Large LCD display Max display: 8000 Counts Polarity identification Measurement mode:double-integral style A/D transform Sample rate:3 times per second Over range indication:OL Low voltage indication Working Environment:0-40 degrees,relative humidity Size:85x160x32 mm Auto Range True RMS measurement Backlight display Data retention Polarity automatic recognition Low voltage display 10A large current measurement, mA level small current measurement Automatic shutdown Main measurement: AC / DC voltage, AC / DC current, resistance, capacitance, Diode / off measurement, frequency and duty ratio measurement. Specifications: Model: ZT301 Screen type: Digital screen Frequency: 100/1000/10K/100k/10M ±0.1 ±2 Capacitance: 10nF ±5.0±20, 100nF/1uF/10uF/100uF/1000uF ±2.0±5, 10MF ±5.0±5 DC voltage: 800mV ± 1.0±10, 8V/80V/800V/1000V ± 0.5±3 AC voltage: 800mV ± 3.0±3, 8V/80V/800V/750V ± 1.0±3 DC current :800uA/8000uA ± 1.5±3, 80mA/800mA ± 1.5±3, 10A ± 1.5±3 AC current :800uA/8000uA ± 1.5±3, 80mA/800mA ± 1.5±3, 10A ± 1.5±3 Resistance: 800 ± 0.5±3, 8K/80K/800K/8M ± 0.5±2, 80M ± 1.5±3 Share ratio: 1 to 99 ± 1 Temperature: 400 ± C 1.0±5, more than 400 degC ± 1.5±15 752 ± 1.0±5, more than 752 degrees Fahrenheit 1.5±15. Measurement methods: double integral A/D converter Ultra range display: OL Working environment: 040 degC, relative humidity 80 Operating mode: Auto range True RMS: Yes Max/Min/Relative: Yes Duty cycle: Yes Note: battery is not included Package List: 1 x Multimeter 1 x User manual 1 x Testing pen 1 x temperature probe 1 x Drawstring bag