Best Oscilloscopes for Beginners

For a first scope for low-voltage electronics, our pick is the Rigol DHO804: four analog channels, 70 MHz bandwidth and native 12-bit resolution in a standalone touchscreen instrument. Choose the DHO802 for a deliberate two-channel setup, the Siglent SDS804X HD for deeper simultaneous captures if delivery fits, or the PicoScope 2204A probe-inclusive kit if you prefer working through a laptop and can accept 10 MHz bandwidth.

Quick picks by first project

• Breadboard circuits and room to grow: Rigol DHO804. Our default standalone choice.
• Comparing circuit input and output: Rigol DHO802. Choose this when you can name the signals you need and two suffice.
• Longer records before zooming in: Siglent SDS804X HD. More acquisition memory than the Rigol picks in the matching channel modes; check availability.
• Laptop-based learning: PicoScope 2204A with two probes. A computer-connected alternative with a built-in signal generator.

Prefer knobs and a dedicated screen? Start with a bench model. Prefer a computer interface? Read our broader USB oscilloscope guide alongside the Pico pick.

Compare the exact models, with channels enabled

These are manufacturer maxima, not independent performance results. Rates are real-time, per enabled channel; bench memory figures are per channel in the stated mode. Pico's hardware memory is shared. Sources: Rigol datasheet, Siglent datasheet and Pico datasheet.

Rigol also puts the DHO804 in its slowest channel mode when three channels are enabled. Its datasheet has an internal conflict: the overview assigns the DHO802's 25 Mpts to single-channel mode, but the acquisition table calls that condition dual-channel; both give 10 Mpts with both channels enabled. Plan around the latter for two-channel work.

Best first bench scope: Rigol DHO804

We prefer the DHO804 for a first bench because four channels leave more ways to investigate a fault without reconnecting probes. For example, our suggested microcontroller setup is clock, data, supply and reset; a two-channel scope cannot display all those signals together.

The DHO800 model table confirms 70 MHz for the DHO804; the family's 100 MHz headline belongs to other variants. The 7-inch touchscreen and USB, LAN and HDMI interfaces are standard. Rigol lists four PVP3150 passive probes in the DHO804 package, plus a destination-country power adaptor and a ground cable in its datasheet.

The compromise is sharing: four sockets do not mean four channels each running at 1.25 GSa/s. With all four enabled, the limits are 312.5 MSa/s and 5 Mpts per channel. Buy it for the extra observation points, with those limits understood.

See the DHO804 specification and included kit at Rigol

Best two-channel bench choice: Rigol DHO802

Choose the DHO802 for a planned two-signal workflow: comparing circuit input and output, or observing I2C clock and data. It retains the DHO804's 70 MHz, native 12-bit conversion and 7-inch touchscreen, but has two analog inputs and comes with two PVP3150 probes.

With both channels active, its maximum is 625 MSa/s and 10 Mpts per channel. That is the same two-channel ceiling as the DHO804; buying the DHO802 does not improve that mode. The DHO812 and DHO814 are the 100 MHz two- and four-channel alternatives. Choose those only if your bandwidth requirement justifies them; our recommendations use the stated, unmodified specifications.

See the DHO802 model row at Rigol

Best for deeper captures: Siglent SDS804X HD

The SDS804X HD is the stronger choice on paper when you need more samples around an event. Its exact column specifies 70 MHz, four analog channels and native 12-bit conversion. With all four active, it offers 500 MSa/s and 10 Mpts per channel, versus the DHO804's 312.5 MSa/s and 5 Mpts.

Do not assign it the family's 100 Mpts headline. The model-specific datasheet gives this model 50 Mpts with one channel, 25 Mpts with two and 10 Mpts with four. Siglent's standard probe list specifies four PB470 probes, rather than the PP510 probes bundled with its 100 MHz variants.

Expansion is useful but separate: the SLA1016 adds digital channels, the SAG1021I supplies an external waveform generator, and SDS800XHD-PA is optional power-analysis software. Common serial decoders are already standard; see the kit table below.

Delivery matters: the US product page currently estimates inventory for January 6, 2027. Confirm dispatch before choosing it for immediate learning.

Best laptop alternative: PicoScope 2204A with probes

Reuse a supported computer if that is how you want to work. Pico's 2204A specifications describe a USB-connected instrument; the datasheet confirms two channels, 10 MHz bandwidth, native 8-bit resolution and a built-in function/arbitrary waveform generator.

Its important limit is 8 kS of shared hardware capture memory, alongside 100 MS/s on one channel or 50 MS/s per channel with both enabled. Long software recordings are a different mode; they do not turn that hardware buffer into bench-scope memory. Likewise, equivalent-time sampling reconstructs repetitive signals and does not replace real-time capture of a one-off event.

Order the probe-inclusive 2204A. The datasheet lists two passive probes for this channel count unless the kit is specified without them; 2204A-D2 is explicitly probe-free. Pico's product page calls the probes optional, so confirm two probes on the selected order instead of relying on the family name.

PicoScope software supports Windows, macOS and Linux, but the product page and downloads page list different OS versions. Check the chosen release's requirements and try its demo before buying.

Buy a complete kit

The maker documents above and the linked manuals specify these contents and requirements. Select the correct regional power package.

Probe bandwidth does not upgrade the oscilloscope. Follow the probe manual and match the physical attenuation switch to the channel setting; compensate passive probes before use. For the Rigols, specify the US destination-country adaptor and cord when ordering for a US bench, plus the supplied grounding lead.

Buying advice: channels, bandwidth and memory

Count signals before choosing bandwidth. Siglent's manual shows I2C using clock and data, while SPI configuration can use clock, chip select and both data directions. Our recommendation: buy four channels if that is your likely next project.

• Yes: Two channels: circuit input/output or I2C clock/data
• Partly: Four channels: our recommendation for observing more signals together
• No: More enabled channels do not retain the single-channel sample-rate headline

Bandwidth is not a clock-speed guarantee. Pico's scope tutorial explains attenuation at the bandwidth limit and the higher harmonics in square waves; it suggests bandwidth around five times the signal frequency as a rule of thumb. Select for the edges you need to inspect. Native ADC bits describe resolution, not a guarantee of voltage accuracy.

Memory buys context. Capture duration equals stored samples divided by sample rate. A longer time window may force a lower sampling rate, so check the actual acquisition readout after enabling channels and changing timebase. The table compares hardware records; Pico streaming is a separate, slower acquisition path.

Grounding and input limits come first

The Rigol quick guide describes a non-isolated instrument whose port grounds share the chassis and requires its ground cable. The Siglent manual connects the input shells to chassis and protective earth. The Pico quick-start guide says USB ground provides measurement grounding, with no protective safety ground.

Input limits are also different: Rigol specifies CAT I 300 Vrms / 400 Vpk with no transient overvoltage; Siglent specifies 400 Vpk, DC to 10 kHz; Pico's full-scale input range reaches ±20 V. These are conditional maker limits, not permissions to probe household mains. Pico distinguishes its ±100 V input overvoltage protection from its measurement range; protection is not a usable range extension.

A first-project route

Start with the bench scope's own compensation output; Rigol and Siglent document this in their setup instructions. Our suggested next exercise is comparing signals in a battery-powered learning circuit. Use our multimeter basics guide for preliminary DC checks.

1. 1

   Prepare the bench

   Read the grounding instructions and inspect the probe and cable.

2. 2

   Learn on the compensation output

   Follow the maker's connection procedure, match attenuation settings and compensate the probe.

3. 3

   Stabilize and inspect

   Adjust the edge trigger, timebase and vertical scale; check the displayed sample rate.

4. 4

   Move to your learning circuit

   Compare signals, then save the capture and settings before changing the circuit.

For the Pico, its built-in generator offers a learning signal; follow its connection instructions. Add digital acquisition when your project needs more logic signals together: see our logic analyzer guide before buying an expansion accessory.

How we choose

This shortlist uses official model tables, datasheets, kit lists and setup manuals checked November 2, 2026. It is a manufacturer-specification comparison; thisMETER has no physical test results for these scopes. We favor a complete learning setup and disclose simultaneous-channel limits, document conflicts and optional hardware. See How we choose and How we measure.

Verdict

Choose the DHO804 for a first standalone bench with room to observe more signals. Choose the DHO802 when two channels cover your plan, the SDS804X HD for deeper records if availability suits, or the 2204A with two probes for laptop-based learning within its bandwidth and memory limits.