Oscilloscopes & Accessories

An oscilloscope, often called an O-scope or simply a scope, is a complex electronic laboratory instrument commonly used to capture, process, display, and analyse electrical signals. The device draws a graph of the instantaneous signal voltage as a function of time, allowing users to observe waveform shapes, measure signal parameters, and diagnose electronic circuit behaviour. Digital oscilloscopes, also known as digital storage oscilloscopes (DSOs) or digital sampling oscilloscopes, have become the industry standard due to their advanced features and versatility. To learn more about how oscilloscopes work and their applications, explore our comprehensive oscilloscope guide.

How Does a Digital Oscilloscope Work?

An oscilloscope displays a graph of an electrical signal, with the vertical axis (Y-axis) representing voltage and the horizontal axis (X-axis) representing time. This visualisation helps users understand how signals change dynamically.

A typical digital oscilloscope consists of the following key components:

  • Analogue vertical input amplifiers: Condition the incoming signal for accurate measurement.
  • Analogue-to-digital converter (ADC) and digital waveform memory: Convert the analogue signal into digital data and store it.
  • Time base with triggering and clock circuitry: Controls the timing and synchronisation of signal sampling.
  • Waveform display and reconstruction circuits: Process and prepare the signal data for visual output.
  • LED or LCD display: Shows the waveform and measurement data.
  • Power supply: Powers the instrument.

Many modern oscilloscopes also include user-friendly features such as USB ports for data export, touchscreens, and connectivity options for remote monitoring.

Different Types of Oscilloscopes

Oscilloscopes are generally classified into two main categories: digital and analogue. Within these, there are several specialised types designed for specific applications:

**Digital Oscilloscopes **

Digital oscilloscopes are one of the most generic and basic types of oscilloscopes used. They offer accurate, real-time waveform capture, advanced triggering options, and the ability to store and analyse data. This makes them useful for general-purpose signal analysis and troubleshooting across a wide range of electronic applications.

Digital Storage Oscilloscopes (DSOs)

Storage oscilloscopes have a memory to store waveforms and display them for a period of time. This enables them to be used for capturing single-shot events, transient signals, and observing waveform changes over extended durations, which is crucial for intermittent fault detection.

Digital Phosphor Oscilloscopes (DPO)

Phosphor oscilloscopes use a parallel processing architecture to enable them to capture and display signals. These oscilloscopes are preferred for observing complex, dynamic, or infrequent signal anomalies due to their ability to provide a real-time, intensity-graded display that reveals signal history and statistical information.

Digital Sampling Oscilloscopes

Digital sampling oscilloscopes are used for analysing high-frequency signals of up to 50 GHz. They are ideal for repetitive signal analysis in high-speed digital and RF applications, achieving high bandwidth by sampling the signal at a rate lower than its frequency, then reconstructing the waveform.

Mixed Domain Oscilloscopes (MDO)

Mixed domain oscilloscopes can operate in more than one domain, i.e. in time to display waveforms and in frequency to display signal spectra. This feature allows them to correlate time-domain and frequency-domain events, providing a comprehensive view of complex signals, especially useful in wireless communications and embedded systems.

Mixed Signal Oscilloscopes (MSO)

Mixed signal oscilloscopes combine an oscilloscope function with that of a logic analyser, which enables simultaneous viewing and triggering on both analogue and digital signals. This type of oscilloscope is often used in embedded system design and debugging, where engineers need to analyse the interaction between digital control logic and analogue sensor or power signals.

Analogue Oscilloscopes

Analogue oscilloscopes use cathode-ray tubes (CRTs) to display basic waveforms, providing a real-time, immediate representation of the signal, making them excellent for observing rapidly changing or complex waveforms without processing delays.

Industrial Applications of Oscilloscopes

Digital oscilloscopes and their analogue counterparts have myriad uses across different industries, such as:

Automotive Diagnostics

Portable oscilloscopes are indispensable for analysing complex electronic signals within modern vehicles. Technicians use them to diagnose issues with sensors, actuators, and ignition systems by observing waveform patterns. A portable digital oscilloscope enables on-site troubleshooting, allowing for the quick identification of faults that might otherwise be missed by standard scan tools, thereby ensuring efficient vehicle repair.

Industrial Automation and Control

Digital oscilloscopes are crucial in industrial automation and control for monitoring and troubleshooting control systems. Engineers in Singapore use them to verify sensor outputs, analyse motor control signals, and debug PLC (Programmable Logic Controller) logic. A handheld oscilloscope or portable scope is particularly useful for field technicians, allowing them to quickly diagnose issues on the factory floor and minimise downtime.

Power and Energy Sector

In the power and energy sector, oscilloscopes are vital for analysing power quality, transient events, and control signals within electrical grids and renewable energy systems. High-performance digital oscilloscopes can capture and analyse voltage and current waveforms to identify harmonics, sags, and swells. The ability to use a portable digital oscilloscope facilitates on-site testing and maintenance of critical infrastructure.

Telecommunications

Telecom engineers rely heavily on oscilloscopes for signal integrity testing, protocol analysis, and troubleshooting network issues. Engineers use digital oscilloscopes to analyse high-speed data signals, measure rise times, and identify jitter and noise. A USB digital oscilloscope offers flexibility for field engineers, enabling them to connect to a laptop for detailed signal analysis and ensure reliable data transmission.

Medical Equipment Testing

In the medical field, oscilloscopes are crucial for ensuring the accurate and safe operation of devices such as patient monitors, diagnostic instruments, and life support systems. They are used to verify signal outputs from sensors, calibrate equipment, and troubleshoot electronic malfunctions. The precision of a digital oscilloscope is critical in this field, where accuracy directly impacts patient safety and diagnostic reliability.

How to Choose the Best Oscilloscopes?

Oscilloscopes are widely used in industry and are being increasingly used as they now offer better performance levels than ever before. There are many different types of oscilloscopes, each having its own characteristics. Choosing the right oscilloscope depends on your specific application, budget, and technical requirements. Consider the following factors:

For example, portable handheld digital oscilloscopes are ideal for technicians working in service, maintenance, and installation, while benchtop models with extensive features are suited for R&D and laboratory environments.

The Leading Supplier and Distributor of Oscilloscopes in Singapore

RS is your trusted source for high-quality oscilloscopes. We stock an extensive range from industry leaders like Keysight Technologies, Pico Technology, and our own RS PRO line. Our selection covers everything from basic analogue scopes to advanced digital and mixed-signal oscilloscopes, combining cutting-edge technology with robust performance at competitive prices, ensuring you find the perfect oscilloscope for your application.

We also carry other essential test and measurement equipment to meet all your demanding professional requirements and testing needs. Order your handheld oscilloscope, USB digital oscilloscope, analogue oscilloscope, and other accessories online today. For more details on our ordering process, delivery services, and delivery fees, please refer to our Delivery Page. If you need assistance selecting the right oscilloscope for your application, our expert team is ready to provide personalised advice and support.

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1060 Products showing for Oscilloscopes & Accessories

1 of 53
In Stock
Pico Technology TA375 Oscilloscope Probe, Voltage Type, 100 MHz, Hook Clip Connector
  • RS Stock No. 174-9601
  • Mfr. Part No. TA375
Subtotal (1 unit)
SGD48.54(exc. GST)
Currently unavailable
Keysight Technologies N28 Series N2840A Oscilloscope Probe, Passive Type, 50 MHz, 10:1 dB
  • RS Stock No. 285-6830
  • Mfr. Part No. N2840A EMEA
Subtotal (1 unit)
SGD276.91(exc. GST)
Stocked by manufacturer
Keysight Technologies GPIB Adapter for Use with E5810A Series
  • RS Stock No. 694-8728
  • Mfr. Part No. 10834A
Subtotal (1 unit)
SGD77.39(exc. GST)
In Stock
RS PRO RSDPB5150 Oscilloscope Probe, Differential Type, 70 MHz, BNC Connector
  • RS Stock No. 123-6479
Subtotal (1 unit)
SGD1,728.23(exc. GST)
Temporarily out of stock
RS PRO Oscilloscope Probe, Passive Type, 100 MHz, BNC Connector
  • RS Stock No. 120-103
Subtotal (1 unit)
SGD15.06(exc. GST)
Stocked by manufacturer
Keysight Technologies InfiniiVision 1000 X Series, 100 MHz Bench Oscilloscope 4-Channel
  • RS Stock No. 240-6598
  • Mfr. Part No. DSOX1204A+DSOX1200A-100
Subtotal (1 unit)
SGD2,634.00(exc. GST)
In Stock
Rohde & Schwarz RT-ZA11 Dual Banana Jack to BNC Male for Use with RT Digital
  • RS Stock No. 280-2767
  • Mfr. Part No. RT-ZA11
Subtotal (1 unit)
SGD52.03(exc. GST)
In Stock
Teledyne LeCroy PPE6KV-A Oscilloscope Probe, Passive Type, 500 MHz, 100 dB, BNC Connector
  • RS Stock No. 240-6185
  • Mfr. Part No. PPE6KV-A
Subtotal (1 unit)
SGD2,104.07(exc. GST)
Stocked by manufacturer
Keysight Technologies InfiniiVision 2000 X Series, 200 MHz Bench Oscilloscope 2-Channel
  • RS Stock No. 725-0482
  • Mfr. Part No. DSOX2022A
Subtotal (1 unit)
SGD4,948.00(exc. GST)
In Stock
Rohde & Schwarz Scope Rider Series, 500 MHz Handheld Oscilloscope 4-Channel
  • RS Stock No. 174-2958
  • Mfr. Part No. RTH1054
Subtotal (1 unit)
SGD15,604.17(exc. GST)
Stocked by manufacturer
Keysight Technologies N7004A Optical to Electrical Converter Test Probe Accessory Kit, For Use With UXR Series,
  • RS Stock No. 264-9749
  • Mfr. Part No. N7004A
Subtotal (1 unit)
SGD88,174.58(exc. GST)
In Stock
Fluke ScopeMeter III Series, 500 MHz Portable Oscilloscope, 4 Channels
  • RS Stock No. 230-5657
  • Mfr. Part No. FLUKE-190-504-III
Subtotal (1 unit)
SGD12,500.00(exc. GST)
Limited stock
RS PRO RS-LX Series RS-LX 312 Oscilloscope Probe, Passive Type, 150 MHz, 1:1, 10:1, BNC Connector
  • RS Stock No. 162-591
Subtotal (1 unit)
SGD45.51(exc. GST)
Last RS stock
Rohde & Schwarz RTB2000 Series, 100 MHz Bench Oscilloscope, 16 Channels
  • RS Stock No. 143-9319
  • Mfr. Part No. RTB2K-104M
Subtotal (1 unit)
SGD6,844.58(exc. GST)
In Stock
RS PRO GDP Series High Voltage Differential Probe, Test Probe Set Type, 100 MHz, BNC Connector
  • RS Stock No. 642-980
Subtotal (1 unit)
SGD1,055.97(exc. GST)
Limited stock
RS PRO RS-HV Series RS-HV 200 Oscilloscope Probe, Passive Type, 300 MHz, 100:1, BNC Connector
  • RS Stock No. 162-562
Subtotal (1 unit)
SGD94.92(exc. GST)
Currently unavailable
Keysight Technologies U1600 Series, 200 MHz Handheld Oscilloscope 2-Channel
  • RS Stock No. 751-2248
  • Mfr. Part No. U1620A
Subtotal (1 unit)
SGD10,849.00(exc. GST)
Currently unavailable
Keysight Technologies InfiniiVision 3000T X Series, 1 GHz Bench Oscilloscope 4-Channel
  • RS Stock No. 134-6142
  • Mfr. Part No. DSOX3104T
Subtotal (1 unit)
SGD30,225.00(exc. GST)
In Stock
Teledyne LeCroy WaveSurfer 4000HD Series, 1 GHz Bench Oscilloscope 4-Channel
  • RS Stock No. 194-3328
  • Mfr. Part No. WaveSurfer 4104HD Promo2
Subtotal (1 unit)
SGD22,463.89(exc. GST)
Stocked by manufacturer
Fluke Oscilloscope Battery Charger EBC290EU, For Use With 190 Series, 2h, Lithium-ion
  • RS Stock No. 716-7374
  • Mfr. Part No. EBC290EU
Subtotal (1 unit)
SGD305.00(exc. GST)
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