OWON TAO3122(A) 2CH 200MHz Tablet Digital Oscilloscope
OWON TAO3122 / TAO3122A Handheld Oscilloscope is a compact dual-channel scope with 200 MHz bandwidth, up to 1 GSa/s real-time sampling, and 40 Mpts memory depth. Equipped with a large 8″ TFT LCD (800×600) and a portable design, it is perfect for field engineers, service technicians, and education labs.
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TAO3122: Standard 8-bit resolution for general-purpose testing.
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TAO3122A: Advanced model with switchable 8-bit / 12-bit / 14-bit resolution for higher precision and more detailed signal analysis.
120 MHz, the widest 2-channel bandwidth
The OWON TAO3122 tops the 2-channel TAO3000 family: a 120 MHz, 2-channel digital oscilloscope on an 8″ multi-touch display, with a 4½-digit multimeter and data logger built in.
Its ≤ 2.9 ns rise time resolves the fastest edges of any 2-channel TAO3000, backed by 1 GSa/s single-channel sampling, 40 Mpts of record length and a 45,000 wfms/s refresh rate. The “A” version adds a switchable 8 / 12 / 14-bit ADC for genuinely low-noise, high-detail captures.
Why the TAO3122
A bench oscilloscope, a multimeter and a data logger behind one 8-inch touchscreen — light enough to carry, quick enough to actually enjoy using.
8″ multi-touch screen
A bright 800 × 600 capacitive display — pinch to zoom, swipe the timebase and tap menus. Rotary knobs and shortcut keys are still there when you want them.
2 channels plus a real meter
Two BNC channels at 120 MHz sit next to dedicated multimeter terminals, with LAN, USB host, USB device and a Pass/Fail trigger output on the side panel.
4½-digit multimeter & logger
A 19,999-count auto-ranging meter shares the screen with the scope: DC/AC volts to 1000 V / 750 V, 10 A current, resistance to 100 MΩ, capacitance, diode and continuity — plus data logging.
Deep memory, fast refresh
A low noise floor, up to 40 Mpts of record length and a 45,000 wfms/s refresh rate catch long and rare events, with ten trigger types, waveform math and optional serial-bus decoding.
Who it’s for & best applications
With 120 MHz across 2 channels on a touchscreen you can carry, the TAO3122 is made for fast digital and embedded work, power-electronics switching edges and demanding field service.
- Field-service & maintenance engineers
- Embedded, power & general electronics benches
- Education, training labs & advanced makers
- Production test and automated (SCPI / LabVIEW) setups
- Anyone who prefers a touchscreen to a wall of knobs
- General electronics, audio & power-supply debugging
- Microcontroller & embedded development
- I²C, SPI, UART/RS232 & CAN bus decoding (optional)
- Signals up to 120 MHz with a ≤ 2.9 ns rise time
- Multimeter measurements and data logging alongside scope work
Choose your version
Pick the version you want from the dropdown at the top of this page. The “A” versions swap the 8-bit ADC for one that is switchable between 8, 12 and 14 bits — more vertical detail and a lower noise floor, at a lower sample rate in the higher-resolution modes. The Wi-Fi option adds the wireless module, so the OWON app on your phone or tablet can mirror the screen, control the instrument and store waveforms.
Prices shown incl. VAT, as listed in the variant picker above. All versions share the same 120 MHz bandwidth, 2 channels, screen, memory and connectivity.
TAO3122 specifications
From the official OWON TAO3000 dual-channel series user manual and datasheet.
| Oscilloscope | |
| Bandwidth | 120 MHz |
| Channels | 2 analog, plus multimeter inputs |
| Vertical resolution | 8-bit — “A” version switchable 8 / 12 / 14-bit |
| Real-time sample rate | 1 GSa/s (single channel) · 500 MSa/s (both channels) |
| Sample rate in “A” modes | 8-bit: 1 GSa/s · 12-bit: 500 MSa/s · 14-bit: 100 MSa/s (single channel) |
| Rise time (typical) | ≤ 2.9 ns |
| Record length | 40 Mpts (single channel) · 20 Mpts (both channels on) |
| Waveform refresh rate | 45,000 wfms/s |
| Acquisition modes | Normal, peak detect, averaging |
| Timebase | 2 ns/div – 1000 s/div, 1-2-5 steps |
| Vertical sensitivity | 1 mV/div – 10 V/div (at input) |
| Input impedance | 1 MΩ ±2%, in parallel with 15 pF ±5 pF |
| Input coupling | DC, AC, GND |
| Max input voltage | 400 V (DC + AC peak) · CAT II, ≤ 300 Vrms |
| Probe attenuation | 0.001X – 1000X, 1-2-5 steps |
| Bandwidth limit | 20 MHz or full bandwidth |
| Trigger types | Edge, Video, Pulse, Slope, Runt, Windows, Timeout, Nth Edge, Logic, UART/RS232, I²C, SPI and CAN (optional) |
| Trigger modes | Auto, Normal, Single · holdoff 100 ns – 10 s |
| Serial bus decoding | I²C, SPI, UART/RS232, CAN (optional) |
| Waveform math | +, −, ×, ÷, FFT, FFTrms, Intg, Diff, Sqrt, user-defined function, digital filter |
| Measurements | Full automatic set (period, frequency, mean, RMS, Vpp, rise/fall time, pulse width, duty, delay, phase, edge counts, area…), cursors, frequency counter |
| Waveform storage | 100 waveforms |
| Built-in digital multimeter | |
| Full-scale reading | 4½ digits (max 19,999 counts), auto-ranging |
| DC voltage | 20 mV – 1000 V · ±(0.3% + 5 digit) on 2 V – 200 V |
| AC voltage | 20 mV – 750 V, 40 Hz – 1 kHz |
| Current (DC / AC) | 10 A · ±(2% + 10 digit) / ±(2.5% + 10 digit) |
| Resistance | 200 Ω – 100 MΩ |
| Capacitance | 2 nF – 20 mF, ±(4% + 10 digit) |
| Diode / continuity | 0 V – 2 V / buzzer below 50 Ω |
| Input impedance | 10 MΩ |
| Display, interfaces & general | |
| Display | 8″ colour TFT LCD, 800 × 600, 65,536 colours, multi-touch capacitive |
| Interfaces | USB host, USB device, PictBridge printing, LAN, Pass/Fail trigger output, Wi-Fi (optional) |
| Automation | SCPI and LabVIEW; mobile app over Wi-Fi for screen mirroring and control |
| Battery | 7.4 V, 8000 mAh — approx. 5 hours of operation |
| Mains supply | 100 – 240 VAC, 50/60 Hz, CAT II · < 15 W · fuse 2 A T 250 V |
| Probe compensator output | Approx. 5 Vpp, 1 kHz square wave |
| Operating conditions | 0 °C – 40 °C, relative humidity ≤ 90% |
| Dimensions | 270 × 191 × 48 mm |
| Weight | Approx. 1.7 kg (without accessories) |
Subject to change, errors & omissions excepted.
In the box
The TAO3122 ships ready to measure — scope probes, multimeter leads and every cable and adapter you need.
- Oscilloscope probes
- Multimeter test leads
- Current extension module
- BNC-SAM adapter
- Probe adjuster
- AC-DC power adapter and mains power cord
- Micro-USB cable
- Fold-out stand holder
- CD-ROM and quick guide
- Padded carrying case (optional)
Accessories subject to final delivery. The PC software and mobile app are free downloads — see the Downloads section below.
Other models in the series
Slower signals and a tighter budget? The TAO3072 (70 MHz) and TAO3102 (100 MHz) share the same platform. Need four channels? See the TAO3074/TAO3104 family. Every TAO3000 shares the same 8″ multi-touch platform, 1 GSa/s sampling, 40 Mpts memory and 45,000 wfms/s refresh rate — only bandwidth, channel count and ADC resolution differ.
Questions about the TAO3122?
Tell us your fastest signals, how many channels you need and whether the high-resolution ADC would help — we’ll confirm the TAO3122 is the right pick, or point you to a better fit in the OWON range.
Downloads
Official OWON documentation and software for the TAO3122.
Also available: the OWON TAO3000 mobile app for the Wi-Fi versions, and the factory product page.