Overview:  It has a built-in rechargeable lithium battery, with unique energy-saving technology, MUSTOOL MT009 can be used continuously for more than 10 hours.  Yes It can measure current. It can also accurately measure variable frequency voltage/frequency.  No need for tedious operations, automatic identification and measurement technology help you solve it with one key.  Color virtual compass function instructions, more better visual experience of operation.  All over,the MUSTOOL MT009 is a smart multimeter with visual effects, precise measurement and easy operation that you can not miss   Features:  Touch screen operation + 4.4 inch large color screen.  True RMS measurement, 6000 counts display.  VFC measurement, used to measure variable frequency voltage/frequency.  Built-in 700mAh rechargeable lithium battery, USB charging.  With function indicating compass, automatic measurement function.  With jack indicator, avoid jack errors.     Specification:  AC voltage: 2V/20V/200V/750V--± (0.8%+10).  DC voltage: 6V/60V/600V/1000V--± (0.8%+10).  AC current: 400mA±(1.2%+10).  DC current: 400mA±(1.2%+10).  Resistance: 600Ω/6kΩ/60kΩ/600kΩ/6MΩ/60MΩ--±(2.5%+3).  Diode: 1mA 3V.  On-off test/Capacitance: 10nF/100nF/1uF/10uF/100uF/1mF/10mF/60mF--±(5%+3).  Frequency measurement: 10Hz/100Hz/1kHz/10kHZ/100kHz/1MHz/8MHz--±(0. 1%+3).  Frequency conversion measurement.  Color screen.  Touch the keys.  NCV.  Zero line/live line test.  Whole unit symbol.  Backlight manual/automatic off.  True RMS measurement.  Temperature (°C/°F): (-20~1000)°C / (0~1832)°F.  Flashlight lighting.  Display mode: LCD display.  Maximum display: 5999 (3 5/6).  Over range display: the highest bit shows 'OL'.  Low voltage display.  Working environment: (0 ~ 40)°C.  Relative humidity: < 80%.  Power supply: 802045/700-900mA rechargeable battery.  Volume (size): 140x70x22mm(length x width x height).  Weight: about 150g (including battery).     Package Includes:  1 x MT009 Digital Multimeter;  2 x Test Leads;  1 x k-type Temperature Probe;  1 x User Manual;  1 x Color Package Box.