Feature:1. Oscilloscope + multimeter + signal source waveform generator, multifunction in one, suitable for outdoor use.2. The oscilloscope has a bandwidth of 70MHz, a sampling rate of 250MS/s, a storage depth of 8K and a waveform refreshing rate of up to 10000 wfrms/s, and supports automatic measurement.3. 4 1/2 digit multimeter, support standard voltage, current, resistance, capacitance, diode, continuity test.4. The signal source adopts 25MHz output frequency, 125MS/s sampling rate, 14bits vertical resolution, supports 1M and 50 output.5. Standard USB TYPEC interface, support power bank charging and host computer communication, 3.5inch LCD display.Specification:Item Type: Handheld OscilloscopeMaterial: ABSColor: As shown in the pictureOscilloscope Performance Parameters:ModelHDS272SBandwidth70MHzChannelDual channel + single channel signal sourceReal-time sampling rate250MSa/s (single channel),125MSa/s (dual channel)Sampling modeNormal,peak samplingStorage depth8KDisplay3.5in LCDWaveform refreshing rate10000 wfrms/sInput couplingDC,AC,groundingInput resistance1M2%,in parallel with 16pF10pFProbe attenuation coefficient1X,10X,100X,1000XMaximum input voltage400V (DC+AC peak value, 1M input impedance) (10:1 probe attenuation)Bandwidth limit20MHzTime base range5ns/div~500s/div, step by 1~2~5 systemVertical sensitivity10mV/div~10V/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-peakCursor measurementVoltage difference between cursors (V), time difference between cursors (T)Communication InterfaceUSB TYPE-CPower supplyPolymer 18650x2 4400mAh (built-in battery)Multimeter Performance Parameters:Digital display4 (Maximum display 20000)MeasuringVoltage, current, resistance, capacitance, diode, on-offInput resistance10MDiode0-2VFunction nameRangeAccuracyDC Voltage200.00mV(0.5%+5 dig)2.0000V/20.000V/200.00V(0.3%+3 dig)1000.0V(0.5%+2 dig)AC Voltage200.00mV/2.0000V/20.000V/200.00V(0.8%+5dig)750.00V(1%+5dig)DC Current20.000mA/200.00mA(1%+5dig)10.000A(2.5%+2dig)AC Current20.000mA/200.00mA(1%+5dig)10.000A(2.8%+5dig)Resistance ()200.00/2.0000k/20.000k/200.00k/2.0000M(0.8%+3dig)20.000M(1%+3dig)100.00M(3%+3dig)Capacitance (F)20.000nF/200.00nF/2.0000F/20.000F/200.00F/2.0000mF(3.0%+10dig)Frequency response(Hz)(40 - 1000) HzSignal Source Performance Parameters:Waveform output frequencySine wave0.1Hz~25MHzSquare wave0.1Hz~5MHzSawtooth wave0.1Hz~1MHzArbitrary wave0.1Hz~5MHzSampling rate125MS/sChannel1Output amplitude20mVpp-5Vpp (high resistance), 10mVpp-2.5Vpp (50)Wave length8KVertical resolution14bitsOutput impedance50.How to Use1: Get the product, press and hold the power button for 2 seconds to turn it on.2: Connect the probe to the oscilloscope.3: First adjust some parameters of the oscilloscope (accurately adjust according to the measuring object).4: Measurement.Package List:1 x Handheld Oscilloscope2 x BNC to Alligator Clip1 x USB TYPE-C Cable2 x Test Leads1 x Probe Pen1 x Bag1 x Calibration Pen4 x Plastic Rings1 x Plastic Cover1 x Hollow Iron Needle1 x Instruction Manual