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The UNI-T UPO2104E is a professional-grade, 100MHz 4-channel digital oscilloscope featuring advanced Ultra Phosphor technology for superior signal visualization and analysis . As a standout model in UNI-T's UPO2000 series, this instrument delivers exceptional performance with a massive 56Mpts memory depth, high-speed 1GSa/s sampling rate, and an impressive 80,000 wfms/s waveform capture rate .
Designed for engineers, technicians, educators, and electronics enthusiasts, the UPO2104E combines powerful specifications with an intuitive user interface and a large 8-inch WVGA (800x480) TFT LCD display . Its competitive feature set positions it as a formidable alternative to popular models like the Rigol DS1054Z and Siglent SDS1104X-E, often offering superior memory depth and screen size at a comparable price point .
4 Analog Channels: Capture and analyze up to four signals simultaneously for comprehensive system debugging .
100MHz Bandwidth: Handles a wide range of applications from audio to embedded systems .
1GSa/s Real-Time Sampling Rate: Ensures accurate capture of fast signals and transient events .
Massive 56Mpts Memory Depth: 28Mpts per channel (or 56Mpts when interleaving) for long-record captures and detailed zoom analysis—twice the memory of key competitors .
Ultra Phosphor Technology: Delivers a 256-level intensity grading display with color temperature indication, providing an analog-like view of signal activity and revealing rare anomalies .
High Waveform Capture Rate: 80,000 wfms/s allows for rapid discovery of glitches and intermittent faults .
Separate Time Base per Channel: A unique feature that allows independent horizontal scaling for each channel, ideal for comparing signals of vastly different frequencies .
Large 8" TFT LCD Display: WVGA (800x480) resolution with a low noise floor for detailed signal visualization—larger than the 7" screens on many competing models .
Comprehensive Triggering & Decoding: Includes advanced trigger types (Edge, Pulse, Slope, Video, Runt, Window, N-edge, Delay, Timeout, Duration, Setup/Hold, Code) and serial bus decoding for RS-232/UART, I²C, and SPI .
Automatic Measurements: Simultaneously displays up to 5 of 34 waveform parameters (Max., Min., Peak-Peak, Frequency, Rise Time, etc.) .
Math Functions: Perform addition, subtraction, multiplication, division, and FFT analysis directly on waveforms .
Connectivity: Standard interfaces include USB Host, USB Device, LAN, and AUX Out (Trig Out, Pass/Fail) for remote control, data transfer, and documentation .
Complete Package: Includes 4 probes, a power cord, and a USB cable .
The UNI-T UPO2104E delivers professional-grade performance across all key oscilloscope parameters .
| Specification | Detail |
|---|---|
| Model | UPO2104E |
| Brand | UNI-T |
| Bandwidth | 100MHz |
| Channels | 4 Analog |
| Real-Time Sampling Rate | 1GSa/s |
| Memory Depth | 28Mpts per channel, 56Mpts (1 channel interleaved) |
| Waveform Capture Rate | Up to 80,000 wfms/s |
| Rise Time | ≤3.5ns |
| Display | 8" TFT LCD, WVGA (800 x 480), 24-bit color |
| Display Technology | Ultra Phosphor (256-level intensity grading, color temperature) |
| Vertical Resolution | 8 bits |
| Vertical Sensitivity | 1mV/div to 20V/div |
| Time Base Range | 5ns/div to 50s/div |
| Input Impedance | 1MΩ ±2% // 21pF ±3pF |
| Input Coupling | DC, AC, GND |
| Maximum Input Voltage (1MΩ) | CAT I 300Vrms, CAT II 100Vrms |
| Channel Isolation | >40dB (DC to max bandwidth) |
| Time Base Modes | YT, XY, Roll |
| Specification | Detail |
|---|---|
| Trigger Types | Edge, Pulse, Slope, Video, Runt, Window, N-edge, Delay, Timeout, Duration, Setup/Hold, Code |
| Trigger Modes | Auto, Normal, Single |
| Hold-off Range | 80ns to 10ns |
| Specification | Detail |
|---|---|
| Automatic Measurements | 34 parameters (Max., Min., Pk-Pk, Amplitude, Mean, Cycle Mean, RMS, Cycle RMS, Frequency, Period, Rise Time, Fall Time, +Width, -Width, +Duty, -Duty, Overshoot, Preshoot, Delay, Phase, etc.) |
| Simultaneous Display | Up to 5 measurements |
| Math Functions | Addition, Subtraction, Multiplication, Division, FFT |
| Serial Decoding | RS-232/UART, I²C, SPI (standard) |
| Specification | Detail |
|---|---|
| Connectivity | USB Host, USB Device, LAN, AUX Out (Trig Out, Pass/Fail) |
| Power Supply | 100V - 240V AC, 45Hz - 440Hz |
| Fuse | T 2.5A 250V |
| Product Dimensions (W×H×D) | 336mm × 164mm × 108mm |
| Product Net Weight | ~3.5 kg (approx.) |
| Gross Weight | ~4.47 kg (with packaging) |
| Safety Rating | EN 61010 |
| Item | Quantity |
|---|---|
| UNI-T UPO2104E Oscilloscope Main Unit | 1x |
| Passive Probes (100MHz, 1x/10x) | 4x |
| Power Cord | 1x |
| USB Cable | 1x |
| User Manual | 1x |
The UPO2104E is a strong contender in the budget 4-channel oscilloscope market, offering compelling advantages:
| Feature | UNI-T UPO2104E | Rigol DS1054Z | Siglent SDS1104X-E |
|---|---|---|---|
| Channels | 4 | 4 | 4 |
| Bandwidth | 100MHz | 50MHz (upgradable) | 100MHz |
| Memory Depth | 56Mpts | 24Mpts | 28Mpts |
| Display Size | 8" | 7" | 7" |
| Waveform Capture Rate | 80,000 wfms/s | 30,000 wfms/s | 40,000 wfms/s |
| Unique Feature | Separate time base per channel | Large user community | Extensive expansion options |
Exceptional Value: Delivers high-end features at a competitive price point .
Massive Memory: The 56Mpts memory depth is twice that of its main competitors, allowing for much longer capture times and deeper zoom analysis without losing detail .
Larger Display: The 8-inch screen provides more workspace and clearer signal visualization compared to the standard 7-inch displays on competing models .
Ultra Phosphor Technology: The 256-level intensity grading and color temperature display help visualize signal activity and anomalies in a way that standard digital oscilloscopes cannot .
Separate Time Bases: This unique feature allows you to view a high-frequency signal on one channel and a low-frequency signal on another with optimal time/div settings for each, making it incredibly versatile .
High Waveform Capture Rate: With 80,000 wfms/s, you are far more likely to capture elusive glitches and infrequent events .
Built-in Serial Decoding: Standard decoding for I²C, SPI, and UART adds significant value for embedded systems work .
Full Connectivity: LAN and USB ports make it easy to integrate into automated test environments or for remote monitoring .
The UNI-T UPO2104E is an ideal tool for:
Debugging and validating analog and digital circuits .
Analyzing power supply sequencing and noise .
Characterizing sensor outputs and amplifier performance .
Capturing and decoding serial communication protocols (I²C, SPI, UART) .
Ideal for university and vocational school labs .
Teaching fundamental oscilloscope concepts with a large, easy-to-read display .
Demonstrating signal integrity and advanced triggering .
Troubleshooting embedded controllers and FPGA-based systems .
Analyzing motor drive signals and power electronics .
Field service and maintenance with robust performance .
A powerful and future-proof tool for advanced DIY projects .
Perfect for audio amplifier design and testing .
Debugging microcontroller projects with built-in decoding .
The UPO2104E is highly regarded in the industry for its outstanding price-to-performance ratio and competitive specifications .
Value for Money: "Al met al geeft deze oscilloscoop veel waarde voor zijn geld" (All in all, this oscilloscope gives a lot of value for its money) — Verified Review .
Market Position: "Deze oscilloscoop is dus een waardige concurrent in de sector van budget 4-kanaals oscilloscopen en kan zich meten met de uiterst succesvolle modellen zoals die van Siglent en Rigol" (This oscilloscope is a worthy competitor in the sector of budget 4-channel oscilloscopes and can compete with the extremely successful models like those of Siglent and Rigol) — Verified Review .
Key Strengths: Reviewers consistently highlight the large 8-inch display and massive 56Mpts memory depth as major advantages over similarly priced competitors .
Build Quality: Users appreciate the solid construction and comprehensive accessory package, which includes four probes .
Expansion Options: While feature-rich, it has fewer expansion options compared to some competitors like the Siglent SDS1104X-E .
Fan Noise: Some users may find the cooling fan audible in very quiet environments .
The UNI-T UPO2104E is a compelling choice for anyone seeking a high-performance 4-channel oscilloscope without breaking the bank. Its combination of 100MHz bandwidth, massive 56Mpts memory, fast waveform capture rate, Ultra Phosphor display, and large 8-inch screen sets a new standard in its price class .
As one reviewer noted, it offers "een memory depth die wel 2x zo groot is ten opzichte van de DS1054Z en de SDS1104X-E" (a memory depth that is 2x larger compared to the DS1054Z and the SDS1104X-E) . The unique ability to set separate time bases per channel adds a level of flexibility rarely found at this level .
Whether you are a professional engineer, an educator, or a serious hobbyist, the UPO2104E delivers the performance and features needed for a wide range of measurement tasks. For the best price-to-performance ratio in its category, the UNI-T UPO2104E stands out as a market leader.
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