FNIRSI P02 USB Oscilloscope Probe Set vs MAIYUM 63-37 Tin Lead Rosin Core Solder Wire
Head-to-head spec comparison to help you pick the right bench tool for your needs.
FNIRSI
$49
MAIYUM
$8.99
Spec-by-Spec Comparison
| Spec | FNIRSI P02 USB Oscilloscope Probe Set | MAIYUM 63-37 Tin Lead Rosin Core Solder Wire |
|---|---|---|
| Station Type | USB Oscilloscope Probe | 63/37 Rosin Core Solder Wire |
| Wattage | 0 W | 0 W |
| Temp Range | N/A °C | N/A °C |
| Temp Stability | 0 ±°C | 0 ±°C |
| Tip System | Probe Clips | 0.8mm Wire, 50g Spool |
| Digital Display | No | No |
| Temp Lock | No | No |
| Sleep Mode | No | No |
| Hot-Air Channel | No | No |
| Channels | 2 | 0 |
| Price | $49 | $8.99 |
| Rating | 4.1/10 | 4.4/10 |
| Buy on Amazon | Buy on Amazon |
Pros & Cons
FNIRSI P02 USB Oscilloscope Probe Set
Pros
- No PC software needed — runs via USB-C as a USB scope directly
- 50MHz bandwidth sufficient for most digital signal debugging (I2C, SPI, UART)
- Compact enough to keep on the bench without dedicated scope space
- Includes 2 probes for comparing clock vs data simultaneously
- Works on Windows, Mac, and Linux without drivers
- Adds real capability at an impulse-buy price
Cons
- Not a replacement for a real oscilloscope — sample depth and trigger options limited
- USB bandwidth means slower waveform update rate than dedicated hardware
- No external trigger input
- Software UI is functional but not polished
MAIYUM 63-37 Tin Lead Rosin Core Solder Wire
Pros
- 63/37 eutectic tin-lead alloy — melts at a single sharp point instead of a plastic phase, easier for beginners to get clean joints
- Rosin core flux is the standard choice for electronics work (not the acid-core stuff meant for plumbing)
- 0.8mm diameter is a sensible middle ground for both through-hole and moderate SMD work
- One of the best-selling, most-reordered consumables in this category — a safe default pick
Cons
- Leaded solder — check local regulations and personal preference; a lead-free spool is worth stocking alongside it for compliance-sensitive work
- 50g spool is small — heavy users will burn through it faster than a bulk reel
- Generic import brand, not a name like Kester — quality is solid but batch consistency isn't guaranteed the way it is with a premium brand
Our Verdicts
FNIRSI P02 USB Oscilloscope Probe Set
The FNIRSI P02 is the best 'good enough' USB scope for a soldering bench. If you debug Arduino/ESP firmware, verify PWM signals, or check I2C traffic, it saves hours of print-statement debugging. Not a standalone scope replacement — a perfect $50 complement.
MAIYUM 63-37 Tin Lead Rosin Core Solder Wire
A safe, inexpensive default solder wire for any station on this site. 63/37 rosin-core is the right formulation for electronics work, and the price makes it an easy add to any order — just keep a lead-free spool around if that matters for your projects.
Frequently Asked Questions
Which is better, the FNIRSI P02 USB Oscilloscope Probe Set or the MAIYUM 63-37 Tin Lead Rosin Core Solder Wire?
It depends on your use case. FNIRSI P02 USB Oscilloscope Probe Set (FNIRSI, $49): The FNIRSI P02 is the best 'good enough' USB scope for a soldering bench. If you debug Arduino/ESP firmware, verify PWM signals, or check I2C traffic, it saves hours of print-statement debugging. Not a standalone scope replacement — a perfect $50 complement. MAIYUM 63-37 Tin Lead Rosin Core Solder Wire (MAIYUM, $8.99): A safe, inexpensive default solder wire for any station on this site. 63/37 rosin-core is the right formulation for electronics work, and the price makes it an easy add to any order — just keep a lead-free spool around if that matters for your projects.
How much does the FNIRSI P02 USB Oscilloscope Probe Set cost vs the MAIYUM 63-37 Tin Lead Rosin Core Solder Wire?
As of 2026, the FNIRSI P02 USB Oscilloscope Probe Set is $49 and the MAIYUM 63-37 Tin Lead Rosin Core Solder Wire is $8.99 on Amazon — a $40.01 difference. Amazon list prices fluctuate; check the linked product pages for current pricing.
Is the FNIRSI P02 USB Oscilloscope Probe Set good for beginners?
FNIRSI P02 USB Oscilloscope Probe Set is suited for: hobbyist, pcb, beginner. MAIYUM 63-37 Tin Lead Rosin Core Solder Wire is suited for: beginner, hobbyist, pcb, vintage. If you're picking your first bench tool, choose the one whose use-case list includes "beginner" — and prioritize ease of setup over advanced features.
Which has the better support ecosystem, FNIRSI or MAIYUM?
FNIRSI P02 USB Oscilloscope Probe Set: uses the Probe Clips tip ecosystem, so replacement tips and specialty shapes matter. MAIYUM 63-37 Tin Lead Rosin Core Solder Wire: uses the 0.8mm Wire, 50g Spool tip ecosystem, so replacement tips and specialty shapes matter.