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20 MHz Handheld Oscilloscope, Single Channel, 500 MSa/s

Single channel handheld oscilloscope is a high-accuracy digital oscilloscope with 20 MHz bandwidth, 500 MSa/s sampling rate, which is an instrument used to measure the shape of alternating current or pulse current waves. Digital oscilloscope has advantages of small size,light weight, multifunction and long service life.
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Delivery date: 7-12 days

The 20 MHz handheld digital oscilloscope with 500 MSa/s sampling rate, Auto, Normal, and Single three trigger modes, USB Type-C interface supports not only power bank power supply, but also adapter charging and top computer connection.

Detail of single channel handheld oscilloscope

High-definition color LCD display, upgrade measurement function keys

  • The digital symbols are clearly displayed and the reading is convenient.
  • The keys feel good, and the function keys are reasonably distributed design.
  • Large LCD display
Detail of single channel handheld oscilloscope

Test pen jack, charging and USB interface design

  • The test pen jack is smooth and fastened, the insertion and removal are good, and there is an upper limit input prompt.
  • With a supportable stand, easy to use.
  • This unit has a built-in rechargeable battery, no need to worry.
  • Can be connected to a computer for online communication.


Dimension Unit (mm)

Dimension of single channel handheld oscilloscope


The main application of a SISCO oscilloscope is used to display the waveforms of signals. It can be used in many fields such as automotive test, signal analysis, electrical, transducer test and measurement, electrical equipment design, medical equipment testing field, etc.

Application of oscilloscope


Performance Characteristics

Model SISCO-HDS1021M-N
Bandwidth 20 MHz
Channel Single channel
Sample rate 500MSa/s
Horizontal Scale (s/div) 5ns/div~100s/div, step by 1~2.5~5
Record length 24K points
Display 3.7" color TFT display (640 * 480 pixels)
Waveform refresh rate 10000 wfrms/s
Input coupling DC, AC, Ground
Input impedance 1 MΩ±2%, in parallel with 18 pF±5 pF
Probe attenuation 1X,10X,100X,1000X
Max. input voltage 400V (PK - PK) (DC + AC, PK - PK, 1MΩ input impedance, probe attenuation 10 : 1), CAT II
Bandwidth limit(typical) 20MHz / Full bandwidth
Sampling rate range 5ns/div ~ 500s/div, step by 1 – 2 - 5
DC Accuracy (average) average >16: ±(5% reading + 0.05div) for △V
Vertical Sensitivity 5mV/div~5V/div (at input)
Rise time (at input, Typical) ≤ 17.5ns
Trigger type Edge and Video
Trigger model Auto, Normal, Single
Trigger level range ±6 div from the screen center
Automatic measurement Vpp, Vavg, Vrms, Freq, Period, Vmax, Vmin, Vtop, Vbase, Vamp, Overshoot,
Preshoot, Rise Time, Fall Time, +Width, -Width, +Duty, -Duty, Delay A→B , Delay A→B
Cursor measurement ΔV, ΔT, ΔT&ΔV between cursors,auto cursor
Communication interface USB Type-C
Acquisition Mode Sample, Peak Detect, and Average
Interpolation sin (x) / x
Vertical Resolution (A/D) 8 bits
Waveform Storage 4 waveforms
Communication Interface Mini-USB,mini-RS232
Power Supply 100V-240V AC, 50/60Hz

Digital Multimeter Specification

Full Scale Reading 3 3/4 digits (max 4000-count)
Diode 0V-1.5V
Input Impedance 10 MΩ
On/ Off Test < 50 (± 30) beeping
Voltage VDC: 400mV, 4V, 40V, 400V, 1000V : ±(1% ± 1 digit); max input: DC 1000V
VAC: 4V, 40V, 400V: ±(1% ± 3 digits), 750V: ±(2% ± 3 digits); Frequency: 40Hz - 400Hz;
Max input: AC 750V (virtual value)
Current DC: 40mA, 400mA : ±(1.5% ± 1 digit), 10A: ±(3% ± 3 digits)
AC: 40mA: ±(1.5% ± 3 digits), 400mA: ±(2% ± 1 digit), 10A : ±(5% ± 3 digits)
Impedance 400Ω: ±(1% ± 3 digits), 40ΚΩ - 4ΜΩ: ±(1% ± 1 digit), 40MΩ: ±(1.5% ± 3 digits)
Capacitance 51.2nF - 100uF: ±(3% ± 3 digits)


  • Power cord
  • CD rom
  • USB cable
  • Probe
  • Probe Adjust
  • Multimeter lead
  • Adapter
  • User manual
  • 5V, 1KHz Output
  • Capacitance Ext Module
  • Soft Bag
  • Metal Case (optional)

Q1: Can an oscilloscope measure DC voltage?
A1: DC voltage can be measured using either an oscilloscope or a digital multimeter. Each piece of testing equipment has its advantages and disadvantages.

Q2: What is the maximum frequency for the oscilloscope?
A2: System bandwidth determines an oscilloscope's fundamental ability to measure an analog signal - the maximum frequency range that it can accurately measure. Entry-level scopes will often have a maximum bandwidth of 100 MHz. They can accurately (within 2%) show the amplitudes of sine-wave signals up to 20 MHz.

Q3: What is the record length for an oscilloscope?
A3: The record length, measured in points or samples, divided by the sample rate (in Samples/second) specifies the total time (in seconds) that is acquired. Example: With a record length of 1 M points and a sample rate of 250 MSa/sec, the oscilloscope will capture a signal of 4 msec in length.

Tips: What should I pay attention to when using a handheld oscilloscope?

The handheld oscilloscope is an instrumentation device that measures the distortion of waveforms in the testing and measurement of low-frequency and ultra-low-frequency standard waveforms and is commonly used in power systems and other occasions that require testing the purity of signal waveforms.

  1. Thermal electronic instruments generally need to avoid frequent startup and shutdown, and the same is true for oscilloscopes.
  2. When making a quantitative measurement, the oscilloscope should be powered on and preheated for more than 10 minutes, so that the components in the machine work in a thermally stable state, otherwise the temperature of the components in the machine is in the process of rising, which will affect the measurement results.
  3. If you find that the waveform is disturbed by the outside world, you can ground the oscilloscope case.

Thank you for buying industrial test and measurement equipment on, all products sold by sisco and the partner cover a 12 months warranty, effective from the date of receiving the products.

What is covered?

sisco is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.

What is not covered?

  • Product purchased from anyone other than a sisco store or a sisco authorized reseller.
  • Expendable parts.
  • Routine cleaning or normal cosmetic and mechanical wear.
  • Damage from misuse, abuse or neglect.
  • Damage from use of parts other than sisco approved.
  • Damage from use outside the product’s usage or storage parameters.
  • Damage from use of parts not sold by sisco.
  • Damage from modification or incorporation into other products.
  • Damage from repair or replacement of warranted parts by a service provider other than a sisco authorized service provider.
  • Damage caused by the application environment not meeting the product usage requirements and the failure to perform preventive maintenance.
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