COMPARISON · OSCILLOSCOPES
FNIRSI 1013D Plus vs FNIRSI 1014D
FNIRSI 1013D Plus vs FNIRSI 1014D is a rare comparison where the scope numbers barely move: both are two-channel, 100 MHz, 1 GSa/s instruments with a 7-inch 800 × 480 screen and a memory FNIRSI quotes as 240 Kbit. What changes is the body around them. The 1013D Plus is a battery tablet you drive by touch; the 1014D is a desktop box with a built-in signal generator.
By the OhmSavvy Research Team ·
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FNIRSI 1013D Plus
4.1★★★★☆A battery-powered tablet oscilloscope with a 7-inch touchscreen, sold with a 100X high-voltage probe.
FNIRSI 1014D
4.3★★★★☆A two-channel 100 MHz benchtop with a built-in signal generator at an entry-level price.
Specs side by side
| FNIRSI 1013D Plus | FNIRSI 1014D | |
|---|---|---|
| Rating | 4.1★★★★☆ | 4.3★★★★☆ |
| Bandwidth | 100MHz | 100MHz |
| Channels | 2 | 2 |
| Sample rate | 1 GSa/s | 1 GSa/s |
| Best for | Portable two-channel work with a large touchscreen | Budget benches that need a scope and a signal source |
| Display | 7-inch 800 × 480 capacitive touchscreen | 7-inch 800 × 480 |
| Memory (as FNIRSI writes it) | "240 Kbit" | "240Kbit" |
| Built-in signal generator | None | 1 ch DDS, sine to 10 MHz, other waves to 2 MHz, 2.5 Vpp |
| Power | 6000 mAh battery (about 4 h), USB-C charging | 5 V adapter |
| 100X high-voltage probe in the Amazon kit | Yes (P4100) | Yes (P4100) |
| Weight (Amazon listing) | 2.33 lb | 3.46 lb |
Specs checked against manufacturer documentation and official Amazon listings. Desk research, not bench testing. How we research.
Key differences
- →Same scope class: FNIRSI rates both at two channels, 100 MHz and 1 GSa/s, with rise time under 3 ns, 12 automatic parameters and FFT, X-Y and roll modes.
- →Only the 1014D has a signal generator: one DDS channel at 2.5 Vpp, sine up to 10 MHz, other waveforms up to 2 MHz and a custom waveform up to 1 MHz.
- →Only the 1013D Plus runs on a battery: 6000 mAh for about four hours, charged over USB-C and usable while charging. The 1014D runs from a 5 V adapter.
- →The 1013D Plus is operated by capacitive touch and gestures on its 7-inch panel; the 1014D's 7-inch panel of the same resolution is driven from front-panel controls.
- →"Plus" is not a faster model. It is FNIRSI's name for the 1013D sold with a P4100 100X probe; the plain 1013D has identical specs without that probe.
- →Both Amazon kits include a P4100 100X probe, so high-voltage reach is not what separates them.
- →FNIRSI states 8-bit resolution for the 1014D but doesn't publish the 1013D's ADC resolution. Neither page states the per-channel rate with both channels on.
Spec by spec
Charting two scopes with identical headline ratings shows something useful: the bars only separate where the products do something different. Every figure below comes from FNIRSI's product pages or the official Amazon listings, and the conditions behind each number are in the captions.
Bars use a logarithmic scale: each step is ten times the last.
At 1 GSa/s either scope draws a 100 MHz sine from ten points per cycle and a 10 MHz clock from a hundred, comfortably above the Nyquist minimum of two. Because FNIRSI doesn't say whether that rate is shared when both channels run, treat the two-channel picture as unknown on both rather than assuming the full rate. Our explainer on what GSa/s means covers why sharing matters.
Tablet or benchtop: where each one earns its keep
Since the measuring hardware is rated the same, the honest way to choose is to picture where the scope will be when you need it, and what else you will have in your hands.
Read the diagram from the middle outward. The center box is what you measure with, and FNIRSI rates it identically, so no trace will look sharper on one than the other. The left box decides whether you can leave the socket behind; the right box decides whether the scope can feed the circuit as well as watch it.
Away from the bench: the 1013D Plus
A tablet that runs about four hours unplugged goes where a desktop box can't easily follow: into an engine bay to look at a sensor output, out to a solar-powered gate opener whose controller keeps resetting, or onto a garage floor next to a robot that won't drive straight. When the battery runs low you can keep working with a USB-C charger attached. The touchscreen helps here too. Dragging the trace to shift the timebase or pinching to zoom is faster with one free hand than hunting for a knob while the other hand holds a probe on a test point.
On a fixed desk: the 1014D
The 1014D makes the most sense where the work is design rather than repair. Building an active filter, an audio preamp or an op-amp stage means feeding a known input and watching what comes out, and its generator supplies that input without a second instrument. Set a 1 kHz sine, put channel 1 on the input and channel 2 on the output, then step the frequency up in 1 Hz increments to find where the output starts to fall. FNIRSI also lists an external trigger input (0 to 40 V) on the 1014D, handy when a separate sync pulse marks the moment you care about.
What 2.5 Vpp can and can't drive
What both can and can't measure
The rated 100 MHz is the frequency where a sine reads about 30% low (−3 dB), so the usual three-to-five times margin puts accurate work below roughly 20 to 33 MHz on either scope. That covers PWM from any hobby microcontroller, UART and I2C at common speeds, audio, and the switching node of most small converters. Our guide to oscilloscope bandwidth explains the margin.
The probe setting moves that ceiling. On the 1013D, FNIRSI's own note gives 5 MHz on 1X, which by the same margin means trusting only signals below roughly 1 to 1.7 MHz. Keep the probe on 10X for anything with fast edges, and use 1X only for small, slow signals where the extra sensitivity helps.
Both share the same blind spots. FNIRSI quotes memory as 240 Kbit without saying what that means in points, so long, detailed captures of a rare glitch are not a strength of either. Neither product page lists serial decoding or logic channels, so reading I2C or UART bytes means counting edges by eye.
| Task | 1013D Plus | 1014D |
|---|---|---|
| Accurate signal range (10X probe) | ~20–33 MHz | ~20–33 MHz |
| Accurate signal range (1X probe) | ~1–1.7 MHz (5 MHz rated) | 1X bandwidth not stated by FNIRSI |
| Supply its own test signal | No | Yes, sine to 10 MHz at 2.5 Vpp |
| Work without a socket | Yes, about 4 h | No battery listed |
| Maker voltage limit on 100X | 4000 V (FNIRSI) | 100X probe in kit; FNIRSI limit listed for 1X/10X only |
| Maker voltage limit on 10X | 400 V | 400 V |
High voltage needs more than a 100X probe
Which should you buy?
| Buyer or job | Pick | Why |
|---|---|---|
| Car and motorbike sensor checks | FNIRSI 1013D Plus | Battery tablet goes to the vehicle, about 4 h per charge |
| Designing filters and amplifiers | FNIRSI 1014D | Built-in sine source to 10 MHz with 1 Hz steps |
| Field repair of appliances and controllers | FNIRSI 1013D Plus | No socket needed, lighter at 2.33 lb |
| Student bench with no other gear | FNIRSI 1014D | Scope and signal source in one box |
| Prefer touch and gestures | FNIRSI 1013D Plus | Capacitive touchscreen operation |
| Triggering from an external sync pulse | FNIRSI 1014D | FNIRSI lists a 0–40 V external trigger input |
| Want the 1013D but not the 100X probe | Plain FNIRSI 1013D | Same specs, sold without the P4100 |
For the whole field, see the best beginner oscilloscopes and the oscilloscope buying guide. If the 1014D is your shortlist, it also faces the Hantek DSO2D15, the Hantek DSO2C10 and FNIRSI's own 2C53T handheld in separate comparisons.
Choose the FNIRSI 1013D Plus if…
- ✓You will carry the scope to a car, a workshop or a project that isn't next to a socket
- ✓You prefer pinching and swiping a waveform to turning knobs
- ✓Your circuits already make their own signals, so a generator would sit unused
- ✓You want the lighter unit: 2.33 lb against 3.46 lb on the Amazon listings
Choose the FNIRSI 1014D if…
- ✓The scope will live on one desk and you want physical buttons and knobs
- ✓You need to inject a test signal into filters, amplifiers or sensor inputs
- ✓You want an external trigger input, which FNIRSI lists for the 1014D at 0 to 40 V
- ✓You would rather not depend on a charged battery during a long session
Neither if…
You need to decode I2C, SPI or UART on screen, or record a long, detailed capture of a rare glitch: FNIRSI doesn't list serial decoding for either model and quotes memory only as "240Kbit" with no point count, so both leave you counting edges by eye.
The bottom line
Buy the FNIRSI 1013D Plus if your scope has to travel: it is the lighter unit, runs about four hours on battery and is driven by touch, with the same 100 MHz, 1 GSa/s rating. Buy the FNIRSI 1014D if it will stay on one desk and you want to feed circuits a test signal; its built-in generator is the one capability the tablet lacks. If you don't need the 100X probe, the plain 1013D has the same specs.
Frequently asked questions
Is the FNIRSI 1013D Plus a different oscilloscope from the 1013D?+
No. FNIRSI sells one 1013D with two options: 1013D Std. and 1013D Plus, and the Plus option's SKU adds the P4100 100X high-voltage probe. Amazon lists them as variants of one listing with identical specifications, so the Plus only makes sense if you want that probe in the box.
Does the FNIRSI 1013D Plus have a signal generator like the 1014D?+
No. FNIRSI lists no signal generator for the 1013D. The 1014D has a single-channel DDS generator at 2.5 Vpp: sine up to 10 MHz, other waveforms up to 2 MHz and a custom waveform up to 1 MHz. If you need to inject test signals, that is the deciding difference.
Can the FNIRSI 1014D run on a battery?+
FNIRSI doesn't list a battery for the 1014D; it runs from a 5 V adapter, which is included. The 1013D Plus has a 6000 mAh battery that FNIRSI rates at about four hours, charges over USB-C and can keep working while it charges.
Are the FNIRSI 1013D Plus and 1014D equally fast?+
On paper, yes. FNIRSI rates both at 100 MHz with a 10X probe, 1 GSa/s maximum and rise time under 3 ns. It notes the 1013D falls to 5 MHz with the probe on 1X. It doesn't state either model's sample rate per channel with both channels running.
Do both FNIRSI scopes come with a 100X high-voltage probe?+
On Amazon, yes. The 1014D kit includes two 1X/10X probes plus a P4100 100X probe, and the 1013D Plus is the 1013D sold with the P4100. A 100X probe extends the displayed voltage range but does not make it safe to clip a ground lead onto mains.
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