Feature:1. Oscilloscope and multimeter and signal source waveform generator, multifunction in one, suitable for outdoor use.2. The oscilloscope has a bandwidth of 40MHz, a sampling rate of 250MS or s, a storage depth of 8K, maximum waveform update rate of 10000 wfrms or s, and supports automatic measurement.3. Standard USB TYPEC interface, support power bank charging and host computer communication, 3.5inch LCD display.4. Multifunctional multimeter, support standard voltage, current, resistance, capacitance, diode, continuity measurement.5. The waveform output frequency is sine wave (0.1Hz-25MHz), square wave (0.1Hz-5MHz), sawtooth wave (0.1Hz-1MHz), arbitrary wave (0.1Hz-5MHz).Specification:Item Type: Oscilloscope Multiumeter Material: ABSColor: As shown in the pictureModel: HDS242Battery: Polymerizable lithium battery 18650S22 x 2 4400mAh (built-in battery)Power Adapter: AC100-240VApplication: Measurement of electrical signal parametersModelHDS242Bandwidth40MHzChannelDual channelReal-time Sampling Rate250MSa or s (single channel), 125MSa or s (dual channel)Sampling ModeNormal, peak samplingStorage Depth8KShow3.5 inch LCDWaveform Update Rate10000 wfrms or sInput CouplingDC, AC, groundinput Resistance1M2 percent , in parallel with 16pF10pFProbe Attenuation Coefficient1X, 10X, 100X, 1000XMaximum Input Voltage400V (DCandAC peak value, 1M input impedance) (10:1 probe attenuation)Bandwidth Limit20MHzTime Base Range5ns or div-500s or div, step by 1-2-5 systemVertical Sensitivity10mV or div-10V or divVertical Resolution8bitLow Frequency Response (-3db)10Hz at BNCRise Time (typical on BNC)5nsTrigger TypeEdge triggerTrigger MethodAutomatic, normal, singleTrigger Level4 divisions from the center of the displayAutomatic MeasurementFrequency, period, amplitude, maximum, minimum, average, peak-to-peak,Cursor MeasurementVoltage difference between cursors (V), time difference between cursors (T)Communication InterfaceUSB TYPE-CDigital Display4 (Maximum display 20000)MeasuringVoltage, current, resistance, capacitance, diode, on-offInput Resistance10MDiode0-2VFunction NameRangeAccuracyDC Voltage200.00mV(0.5 percent and5 dig)2.0000V or 20.000V or 200.00V(0.3 percent and3 dig)1000.0V(0.5 percent and2 dig)AC Voltage200.00mV or 2.0000V or 20.000V or 200.00V(0.8 percent and5dig)750.00V(1 percent and5dig)DC20.000mA or 200.00mA(1 percent and5dig)10.000A(2.5 percent and2dig)Alternating Current20.000mA or 200.00mA(1 percent and5dig)10.000A(2.8 percent and5dig)Resistance ()200.00 or 2.0000k or 20.000k or 200.00k or 2.0000M(0.8 percent and3dig)20.000M(1 percent and3dig)100.00M(3 percent and3dig)Capacitance (F)20.000nF or 200.00nF or 2.0000F or 20.000F or 200.00F or 2.0000mF(3.0 percent and10dig)Frequency Response (Hz)(40-1000) HzWave Output FrequencySine wave0.1Hz-25MHzSquare Wave0.1Hz-5MHzSawtooth wave0.1Hz-1MHzArbitrary wave0.1Hz-5MHzSampling Rate125MS or sNumber of Channels1Output Amplitude20mVpp-5Vpp (high resistance), 10mVpp-2.5Vpp (50)Wave Length8KVertical Resolution14bitsOutput Impedance50.Package List:1 x Handheld Oscilloscope1 x BNC to Crocodilian Clip1 x USB TYPE-C Cable2 x Test Leads1 x Probe Pen1 x Bag1 x Calibration Pen8 x Plastic Rings2 x Plastic Cover1 x Hollow Iron Needle2 x Instruction Manual