Feature:1. Digital Multimeter: Digital multimeter is used to measure AC and DC voltage, current, resistance, diode, capacitance and on off test. High sensitivity and accuracy, clear display, strong anti overload capability, and easy to carry.2. 3 in 1 Instrument: Mobile and compact design, 3 in 1 use of oscilloscope, digital multimeter and signal generator. 3.8in high resolution, high contrast color LCD, suitable for outdoor use.3. Strong in Power: Ultra low power consumption of 3W. It is powered by 4000mAh lithium battery. Lithium batteries may not be fully charged when delivered. To fully charge the battery, it takes up to 4.5 hours when the device is turned off or the charge indicator. After charging, the battery can supply power for about 10 hours.4. Oscilloscope: The hand held oscilloscope has two acquisition modes, high refreshing, depth storage, automatic measurement, cursor measurement and saving functions.5. Waveform Generator: 80MHz digital oscilloscope, with 2 channel 200Msps sampling rate. 5Vpp, 3Vpp, 2Vpp, 1Vpp, 500mVpp, 200mVpp, 100mVpp, 0Vpp waveform amplitude range. The maximum single channel length is 6K, and the maximum dual channel length is 3K. 8 bit vertical resolution and 1M input impedance.Specification:Item Type: Oscilloscope MultimeterScreen: 320 x 240 resolution, 2.8in TFT color screen, 58 x 45mm / 2.28 x 1.77in (approx.).Backlight Brightness: AdjustableBacklight Time: 30s~120s, adjustable, and the screen will shut off automatically when there is no operation. Battery: 2 x 18650 2000mAh lithium ion battery, shipped with built in battery. Automatic Shutdown: 15min~60min, adjustable, automatic shutdown in case of no operation. Charging Interface: Type CService Time: About 10 HoursData Record: Record 2000 DMM data and 200 OSC waveforms. Functions of Digital Storage Oscilloscope:Analog Bandwidth: 80MHzMaximum Real Time Sampling Rate: 200MspsVertical Direction: 8bitHorizontal Square: 1bitChannels: 2 ChannelsCoupling Mode: DC, AC, GNDInput Impedance: About 1M Index: 4.0 vertically, 6.0 horizontally. Vertical Sensitivity Range: input BNC, 10mV/div~10V/divTime Base Range: 5ns/div~50s/div, 1-2-5 stepsAccuracy of Vertical Wave Amplitude: (5%+0.2div)Time Base Accuracy: (0.01+0.1div)Automatic 0 Reference: DC MeasurementScanning Mode: Automatic, normal, single. Trigger Level: 4div, 0.04div per level. Trigger Slope Selection: Up, down, double. Trigger Position Adjustment: 4di, 0.04div per stage. Automatic Setting: Automatically set the time base and vertical amplitude. Cursor Measurement Function: V, T. Optional Bandwidth Limit: 20MHz, typical. Voltage Measurement Parameters: Vp-p, Vp, Vmax, Vmin, Vavg, VrmsTime Measurement Parameters: Frequency, period,+width, - width,+duty cycle, - duty cycle. Automatic Measurement Accuracy: (5%+0.2div)Record Length: 6K for single channel and 3K for dual channel. Signal source Features:Waveform Frequency:Positive Wave: 1Hz-5MHzSquare Wave: 10Hz~1MHzTriangular wave: 10Hz~1MHzWaveform Amplitude: 5Vpp, 3Vpp, 2Vpp, 1Vpp, 500mVpp, 200mVpp, 100mVpp, 0Vpp.Package List:1 x Oscilloscope Multimeter1 x Storage Bag1 x Charging Cable2 x User Manual4 x Probe1 x Special Screwdriver8 x Plastic Ring2 x Yellow Cover