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ADS-4102 Handheld Digital Oscilloscope

Handheld digital oscilloscope. Dual channel. Bandwidth: 100MHz; Max. Sample rate: 1GSa/s (500MSa/s each channel); Max. Memory Depth: 2Mpts; Waveform math: +, -, ×, /, FFT; Trigger types: Edge, Video, Pulse, Slope, Alternate; 32 types Automatic measurement; Rise Time: ≤3.5ns; Time Base Range: 2.5ns/div…50s/div; Scan Range: 100ms/div50s/div; Vertical Sensitivity: 2mV/div100V/div (1-2-5 step); Vertical Resolution: 8bits; Frequency Counter: 6bits; Oscilloscope Trend Plot: 800kpts; Multimeter Trend Plot: 1.2Mpts; Recorder: 7Mpts. Built-in Frequency Counter. Built-in Multimeter: measurement voltage (AC, DC), current (AC, DC), resistance, capacitance, diode test, continuity test. 5.7” color TFT LCD display; USB device, USB host, Power Supply: 100...240VAC, battery; Dimensions: 10.2x6.4x2.1in/259.5x163.2x53.3mm; Weight: 3.3lb/1.5kg.

AKTAKOM ADS-4102 is a high performance handheld oscilloscope with great range of dynamic input scope. It has small volume which convenient to carry, compact interface and etc. It satisfies the most needs of outside measurement and improves working efficiency greatly.


  • Dual-input, combine oscilloscope, Multimeter and recorder (including TrendPlot and waveform Recorder) in one unit
  • Input voltage: input voltage through BNC is up to CATII 300V and CATⅢ 150V
    Standard probe: 10X CATII 400V
    Optional probe: 10X CATII 1000V and 10X CATIII 600V
    Oscilloscope and multimeter safety grade is up to CATII 600V and CATIII 300V
  • 5.7 inch TFT color LCD display
  • 100MHz Bandwidth, 1GSa/s real-time sampling rate single channel, up to 50GSa/s equivalent sampling rate, 2Mpts memory depth
  • With 6000 dots display resolution Multimeter and provides measurements of DCV, ACV, DCI, ACI, Resistance, Diode, Capacitance and Continuity
  • Support Scope TrendPlot, Meter TrendPlot and Scope Recorder
  • Trigger modes: Automatic, Normal and Single
    Trigger types: Edge, Pulse, Video, Slope and Alternative
  • 32 automatic measurements, 3 cursor measure modes
  • 4 digital filter mode: Low pass, High pass, Band pass, Band limit
  • Math functions: +, - , ×, ÷, FFT operations
  • Multiple Language User Interface
  • Standard configuration interface: USB Device, USB Host
  • Support USB storage and update; support PC remote control and PictBridge print
  • Rechargeable Li battery pack, compact, portable, fit for outdoor operation

Oscilloscope Specifications:

Inputs System
Input CouplingAC, DC, GND
Input Impedance1MΩ±2% || 18pf3pf
Probe Attenuator1X, 10X
Voltage Probe Attenuator Factors1X, 5X, 10X, 50X, 100X, 500X, 1000X
Current Probe Attenuator Factors1X, 5X, 10X, 50X, 100X, 500X, 1000X
BNC Maximal Input Voltages
(refer to BNC crust)
 Overvoltage Classes
CAT II300Vrms
CAT III150Vrms
ProbeOvervoltage ClassesMaximal Voltages
Standard Probe 10XCAT II400Vrms
Optional Probe 10XCAT III600Vrms
Multimeter Floating VoltagesOvervoltage ClassesMaximal Voltages
CAT II600Vrms
CAT III300Vrms
Channel Common Mode Rejection>100:1 50MHz
Isolation Degree between Channels>35dB
Acquisition System
Sample TypesReal time, Equivalent time
Memory DepthSingle Channel 32k, double channels 16K
Channel ModeSampling RatCommon StorageDeep Storage
Single Channel1Gsa/s40kptsDon’t support
Single Channel500MSa/s or below20kpts2Mpts
Double Channels500MSa/s or below20kpts1Mpts
Sample ModeSample, Peak Measure, Average
Averages4, 16, 32, 64, 128, 256
Vertical System
Vertical Sensitivity2mV/div…100V/div (1-2-5 order)
Channel Voltage Offset Rang2mV200mV: 1.6V
206mV10V: 40V
10.2V100V: 400V
Vertical Resolution8 bit
Single-shot Bandwidth100MHz
Lower Frequency Limit (AC -3dB)≤10Hz (BNC input)
DC Gain Accuracy5mV/div-100V/div:≤3% 2mV/div:≤4%
DC Measurement Accuracy: All Gain settings ≤200mV/div[3%X (|reading|+|offset|)+1% of |offset| +0.2div+2mV]
DC Measurement Accuracy: All Gain Settings >200mV/div[3%X (reading|+|offset|)+1% of |offset| +0.2div+100mV]
Rise Time (BNC value)<3.5ns
Math Operation+, -, *, /, FFT
FFTWindow Modes: Hanning, Hamming, Blackman, Rectangular
Sampling points: 1024
Bandwidth Limiter20MHz (-3dB)
Horizontal System
Real Time Sampling RateSingle channel below 50ns/div: 1GSa/s; double channel: 500MSa/s
Equivalent Sampling Rate< 50GSa/s
Time Base Accuracy50ppm measured over 1ms interval
Horizontal Scan Range

Scan: 100ms/div50s/div (1-2.5-5 order)

Trigger System
Trigger TypesEdge, Pulse Width, Video, Slope, Alternative
Trigger SourceCH1, CH2
Trigger ModesAuto, normal, Single
Trigger CouplingAC, DC, LF reject, HF reject
Trigger Level RangeCH1, CH2: 6 divisions from the center of the screen
Trigger DisplacementPre-trigger: (Memory depth/(2*sampling)), Delay Trigger: 260 div
Holdoff Range100ns1.5s
Edge TriggerEdge type: Rising, Falling, Rising and Falling
Pulse Width TriggerTrigger Modes: (>,<,=) Positive Pulse Width, (>,<,=) Negative Pulse Width
Pulse Width Range: 20ns10s
Video TriggerSupport Signal Formats: PAL/SECAM, NTSC
Trigger Conditions: odd field, even field, all lines, pointed line
Slope Trigger(>,<,=) Positive slope, (>,<,=) Negative slope
Time: 20ns10s
Alternative TriggerCH1 trigger types: Edge, Pulse, Video, Slope
CH2 trigger type: Edge, Pulse, Video, Slope
X-Y Mode
X-pole Input / Y-pole InputChannel 1 (CH1) / Channel 2 (CH2)
Phase Move3 degrees
Sampling FrequencySupport 25kSa/s250Msa/s sampling rate (1-2.5-5 order)
Measure System
Auto Measure (32 types)Vpp, Vmax, Vmin, Vamp, Vtop, Vbase, Vavg, Mean,Crms, Vrms, ROVShoot, FOVShoot, RPREShoot, FPREShoot, Rise, Fall, Freq, Prd, +Wid, -Wid, +Dut, -Dut, BWid, Phas, FRR, FRF, FFR, FFF, LRR, LRF, LFR, LFF
Cursor MeasureManual mode, Track mode and Auto mode
Control Panel Function
Auto SetAuto adjusts the vertical, horizontal system and trigger position
Save/RecallSupport 2 groups of referenced Waveforms, 20 groups of setups, 10 groups of captured waveforms internal storage/recall functions and USB flash driver storage function.
Hard Ware Frequency Counter
Reading resolution6 Bytes
RangeDC coupling, 10Hz to maximal bandwidth
Signal TypesIts to all trigger signals (Except pulse width and video trigger)

Digital Multimeter Specifications:

Max. Display 6000
Measure FunctionDC voltage, AC voltage, resistance, diode, continuity, capacitance, DC current, AC current
Max. Input VoltageAC (virtual value): 750V (AC Frequency: 20Hz1kHz) DC: 1000V
Max. Input CurrentAC (virtual value): 10A (AC Frequency: 20Hz1kHz) DC: 10A
Input Impedance10M
DC Voltage
AC Voltage
Diode and Continuity Measure
Continuity<50Ω alarm
40nF10pF(3%+10digit) measurements >5nF
DC Current
AC Current

Recorder Specifications:

Scope Trend Plot
Display Modefull view and normal
Record Length800kpts,>24 hours
Record Channel Num.2
Cursor and Zoomsupport
Record Manualsupport
Multimeter Trend Plot
Display Modefull view and normal
Record Length1.6Mdots, >24 hours
Record Channel Number1
Cursor and ZoomSupport
Record ManualSupport

Generic Specification:

Display System
Display ModeColor TFT 5.7 inches (145mm) diagonal Liquid Crystal Display
ResolutionTFT 5.7 inches: 320 (horizontal) pixels * 234 (vertical) pixels
Display Color64K color
Display Contrast (typical)150:1
Backlight Intensity (typical)300 nit
Waveform Display RangeTFT 5.7in 8x12div & 8x18div
Wave Display ModeDots, Vectors
Persist Off, 1 sec, 2 sec, 5 sec, Infinite
Menu Display2 sec, 5 sec, 10 sec, 20 sec, Infinite
Screen-SaverOff, 1 min, 2 min, 5 min, 10 min, 15 min, 30 min, 1 hour, 2 hour, 5 hour
SkinClassical, Modern, Traditional, Succinct
Waveform InterpolationSin(x)/x, Linear
Color modelNormal, Invert
LanguageSimplified Chinese, Traditional Chinese, English, Arabic, French, German, Russian, Spanish, Portuguese, Japanese, Korean, Italian
Adapter Supply PowerInput Voltage100-240V 50/60Hz
Output Voltage9V 4A
Battery Supply Power5000mAh, 7.4VDC, persisting 5 hours
Charging timeAbout 4 hours
TemperatureWork: 040°C
Storage: -20C70C
CoolingNatural Cool
Humidity85%RH, 40C
DimensionLength259.5mm / 10.2in
Width163.2mm / 6.4in
Height53.3mm / 2.1in
Weight1.5kg / 3.3lb

Standard Accessories:

  • Two Passive Probes
  • Test leads
  • USB data cable
  • Power cord
  • Manual
  • CD

    Optional Accessories:

  • Car-Charger

Frequently Asked Questions

  • When changing the horizontal sweep on the digital oscilloscope at different horizontal points observed inexplicable change in the form of the same signal, why is this happening?
  • There is wave form displayed, but it is not stable
  • After the oscilloscope is powered on the display remains dark, what should I do?

  • When changing the horizontal sweep on the digital oscilloscope at different horizontal points observed inexplicable change in the form of the same signal, why is this happening?

    In fact, this is not a problem.

    Just keep in mind that you're using a digital oscilloscope, which digitizes the signal with different sampling rates depending on the selected horizontal sweep, and then connects the digitized points with strait line while restoring the real shape of the signal.

    Your first screen shows that you are measuring voltage 50 Hz with the 10 ms / div sweep and a sampling frequency of 20 kHz Ks/s

    One signal period (20 ms), digitized in this mode, 20E-03 (sec) * 20E03 (1/sec) = 400 points. This is enough to properly restore and interpolate a sine wave of 50 Hz (i.e. in a period of 20 ms).

    Normal display, with a sweep 10 ms / div:

    Distortion of the same signal at 10 s / div sweep

    Your second screen is set to sweep 10 sec / div, and sample rate on a sweep turned to 20 samples per second (20 Sa / s). I.e. one signal period 20 ms had: 20E-03 (sec) * 20 (1/sec) = 0.4 points. That means that to restore (to interpolate the points) a sine wave with less than one point in time is impossible, so you get this mess (known as "aliasing" or a false frequency) formed by the beats of the measured frequency and sampling frequency.

    In order to correctly install a data collection in a digital oscilloscope one should follow a simple rule - the sampling rate must be at least 5-10 times higher than the frequency signal, in that case you will not have the issues that we just discussed.

    This applies to all digital oscilloscopes and in no way connected to any particular make or model of oscilloscope or its probes.


    There is wave form displayed, but it is not stable

    • Check whether the Source item in the TRIG MODE menu is in conformity with the signal channel used in the practical application.
    • Check on the trigger Type item: The common signal chooses the Edge trigger mode for Type and the video signal the Video. Only if a proper trigger mode is applied, the wave form can be displayed steadily.
    • Try to change the trigger coupling into the high frequency suppress and the low frequency suppress to smooth the high frequency or low frequency noise triggered by the interference.


    After the oscilloscope is powered on the display remains dark, what should I do?

    Please implement the following fault treatment procedure.

    • Check whether the power cable is connected properly.
    • Ensure the power switch is turned on.
    • Restart the instrument after completing the checks above.
    • If the oscilloscope still can not work normally, please call for service.


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