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Description
FNIRSI DPOS350P 350MHZ 4IN1 SCOPFNIRSI DPOS350P 4 IN 1 Tablet Oscilloscope 350MHZ, Spectrum Analyzer 200Khz 350Mhz, Frequency Response Analyzer DDS Generator, 2Ch Handheld Oscilloscope 1 GSA S, 7" Touch Screen Digital Phosphor 350MHz 4 IN 1 Tablet Oscilloscope Overview The DPOS350P is a high performance, feature rich all in one oscilloscope, suitable for a wide range of industrial and research applications. With its powerful integrated design, high sampling rate, and wide bandwidth,
FNIRSI DPOS350P 4-IN-1 Tablet Oscilloscope 350MHZ, Spectrum Analyzer 200Khz - 350Mhz, Frequency Response Analyzer DDS Generator, 2Ch Handheld Oscilloscope 1 GSA/S, 7" Touch Screen Digital Phosphor
350MHz 4-IN-1 Tablet Oscilloscope
Overview
The DPOS350P is a high-performance, feature-rich all-in-one oscilloscope, suitable for a wide range of industrial and research applications. With its powerful integrated design, high sampling rate, and wide bandwidth, it can accurately analyze complex signals, provide clear waveform display, and smart triggering. The built-in high-resolution display, touch operation, intelligent triggering, and multiple measurement modes make it a precise and reliable tool for testing and analysis in laboratories, production lines, and maintenance sites.
Features
Specifications
| Model | DPOS350P |
| Power-on configuration | 5 preset items |
| Charging requirements | QC18W - 12V/1.5A (Type-C) |
| Languages | Chinese / English / Russian / Portuguese |
| Battery specifications | 3.7V, 8000mAh lithium battery |
| Screen size | 7 inches |
| Standby time | about 3 hours |
| Screen resolution | 1024 × 600 pixels |
| Charging time | Startup ≈ 5 Hours |
| Screen technology | IPS full viewing angle |
| Total power consumption | 10W |
| Interaction mode | Capacitive touch screen |
| Heat dissipation | Air cooling |
| Expansion interface | USB data port |
| Dimensions | 190mm × 128mm × 37mm |
| Automatic shutdown | 15 minutes ~ 1 hour / off |
| Firmware upgrade | Supports .iso image upgrade |
| Storage Temperature Range | -20℃ ~ 60℃ |
Oscilloscope Parameters
| Specification | Details |
|---|---|
| Analog Channels | 2 |
| Analog bandwidth | 350MHz |
| Rise time | 1nS |
| Max sampling rate | 1GSPS |
| Memory depth | 60Kpts |
| Input impedance | 1MΩ / 14pF |
| Time base range | 5nS ~ 50S |
| Roll time base | 50mS ~ 50S |
| Vertical sensitivity | 2mV ~ 20V (1X) |
| Vertical range | 16mV ~ 160V (1X) |
| DC accuracy | ±2% |
| Time accuracy | ±0.01% |
| Input coupling | DC / AC |
| Probe attenuation | 1X / 10X / 100X |
| Hardware bandwidth limit | 150M / 20M |
| High resolution mode | 8bit ~ 16bit |
| Parameter measurements | 12 types |
| Cursor measurement | Time, period, frequency, level, voltage |
| Trigger detection | Digital trigger |
| Trigger channel | CH1 / CH2 |
| Trigger mode | Auto / Single / Normal |
| Trigger edge | Rising / Falling |
| Trigger suppression | L1 ~ L3 |
| Trigger level | Manual / Auto 10% ~ 90% |
| Screenshot storage | 90 pictures |
| Waveform storage | 500 groups |
| Background grid | Display / Hide |
| Waveform movement | Coarse adjustment / Fine adjustment |
| Overvoltage protection | Withstand voltage 400V |
| Waveform brightness | Adjustable |
| Simple FFT display | Supported |
| Digital fluorescence | Supported |
| Color temperature display | Supported |
| X-Y mode | Supported |
| ZOOM time base | Supported |
| One-key auto adjustment | Supported |
| One-key return to zero | Supported |
| Data browser | Supported |
Signal Generator Parameters
| Specification | Details |
|---|---|
| Waveform types | 14 standard functions + captured waveform |
| Frequency | 0 ~ 50MHz (sine wave only, others up to 10M/5M/3M) |
| Amplitude | 0 ~ 5VPP |
| Offset | -2.5V ~ +2.5V |
| Duty cycle | 0.1% ~ 99.9% |
| Frequency resolution | 1Hz |
| Amplitude resolution | 1mV |
| Offset resolution | 1mV |
| Duty cycle resolution | 0.1% |
| Custom captured waveform | 500 groups |
Frequency Response Analyzer
| Specification | Details |
|---|---|
| Excitation frequency | 100Hz ~ 50MHz |
| Excitation amplitude | 0 ~ 5VPP |
| Excitation offset | -2.5V ~ +2.5V |
| Excitation frequency count | 20 ~ 500 |
| Cursor measurement | Frequency / Gain / Phase |
| Operating mode | Single / Cyclic |
| System calibration | Supported |
Spectrum Analyzer
| Specification | Details |
|---|---|
| Conversion method | FFT |
| FFT length | 4K ~ 32K |
| Frequency range | 200KHz ~ 350MHz |
| Level range | -60dBmV ~ +260dBmV |
| Cursor measurement | Frequency / Amplitude |
| Marking parameter | Maximum energy harmonic |
| Waterfall chart | Supported |
| 3D waterfall chart | Supported |
| Automatic adjustment | Supported |
| System calibration | Supported |
Package List
-
DPOS350P Host ×1
-
QC18W Fast Charger ×1 (US or EU Plug)
-
350MHz Probe ×2
-
Storage Bag ×1
-
Alligator Clip ×1
-
USB Data Cable ×1
-
User Manual ×1
-
Packing Box ×1
Special Precautions
-
Both probe ground clips must be connected together. Never connect to different potentials (e.g., separate ends of high-power/AC circuits). Doing so risks damaging the mainboard.
-
Maximum BNC input tolerance: 400V. Never exceed this on a 1X probe.
-
Always use the provided charger. Using test equipment power supplies or USB can cause ground loops and short-circuits.
-
For high-frequency, high-voltage signals: use 100X probes (ultrasonic welders/cleaners, etc.), or even 1000X probes (high-frequency transformers, induction heating, etc.).
Downloads
Additional Information
| Device | Oscilloscope |
| Type | 350MHz | 4-IN-1 | Tablet |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 1697 reviews
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Product Reviews
★★★★★ 5
Fun with a creative twist
Color: Colors May Vary, Size: 5.5 Inch
This would be a toy to get creative with. The quality is there. It’s a nice size it rolls so it’s great as just a bowl that’s slightly rubbery silicone like that the dog can play with and chew a bit. If you have a strong tour, and you believe that they chew everything that you give them eventually they would probably chew it open. Our puppy likes it plays with that as a typical ball. It’s perfect because he can grab it in his mouth and walk around with it lightly and easily. We do take a kitchen towel. Roll it with treats and shove it inside and he’ll have to try and retrieve that that towel with the treats so it kind of gives us a few minutes of peacefulness. You can create so many different fun games with it because you have access to place things inside you know the holes are slightly big so the items inside would have to be of a good size. We have put his his large wishbones inside to allow for him not to have to hold the bone and it gives him some sort of structure as well as if it rolls away, he finds it to be a game so that’s nice. It’s made well. It’s good quality. I like how it’s blue so the dog could see the color and it’s easy to store cause it’s not huge.
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Reviewed in the United States on January 11, 2026
★★★★★ 5
Buy it!!!! It’s great!!!
Color: Blue, Size: 5.5 Inch, Color: Blue, Size: 5.5 Inch
My dog is obsessed with this ball!!! It is very sturdy and he has fun chewing it and playing with it. I bought the biggest size for my mini Goldendoodle. Buy it!! It’s a winner!!!
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Great toy for both inside & outside play!
Color: Pink, Size: 3 Inch, Color: Pink, Size: 3 Inch
My Yorkies love this toy! This is my 3rd purchase of the same type of ball - the small 3" JW Pet HOL-lee ball. I bought one for my first Yorkie, she loved it, so when I got another Yorkie puppy, I bought a 2nd. They play with them so much that they sometimes get left outside. The green one was faded and started to blend it with the grass, so I bought a new one. It's great for a game of fetch, and isneasy to wash. Wish I could select a specific color, as I'd really like a purple one.
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Reviewed in the United States on July 20, 2025
★★★★★ 4
Great indoors and out.
Color: Blue, Size: 4.5 Inch
This is a great toy if your dog likes balls. While it's not my dog's favorite (he favors small squeaky animals) it is safe indoors, soft on floor, walls and furniture and something durable for fetching.
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Reviewed in the United States on February 16, 2026
★★★★★ 5
Terrific for fetch, would not hold up to unmonitored chewing
Color: Colors May Vary, Size: 5.5 Inch
Fabulous for playing fetch. Young crazy-dog enjoys it! Would not hold up to using as a chew toy - we remove it when not playing with the dog.
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Reviewed in the United States on January 13, 2026