FNIRSI 2D15P
A feature-packed 100 MHz handheld for electronics repair that undercuts bench scopes on price. Treat the bandwidth as a maker claim.
Amazon $179.99$179.99
The FNIRSI 2D15P is the better oscilloscope overall, rated 3.5 to 3.0. The FNIRSI 2D15P leads on value and features. The Micsig STO1004 wins on memory and sample rate. The FNIRSI 2D15P costs $464 less ($179.99 vs $643.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Micsig STO1004
#14 in 100 MHz and upFull review
A rugged 4-channel tablet for automotive and field diagnostics where deep memory and portability justify the cost.
Amazon $643.99$643.99
Which should you buy?
- Choose the FNIRSI 2D15P for value ($1.80 per MHz ($179.99, 100 MHz claimed) vs $6.44 per MHz ($643.99, 100 MHz claimed)) and features (built-in multimeter, signal generator, built-in battery, touchscreen vs built-in battery, touchscreen, four channels).
- Choose the Micsig STO1004 for memory (70 Mpts of memory vs 1 Mpts of memory) and sample rate (1 GSa/s sampling vs 500 MSa/s sampling).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every 100 mhz and up oscilloscope; a clear win is highlighted. How we rank explains each one.
| Factor weight | FNIRSI 2D15P | Micsig STO1004 |
|---|---|---|
| Overall rating | 3.5/5 | 3.0/5 |
| Value 30% | 65 $1.80 per MHz ($179.99, 100 MHz claimed) | 9 $6.44 per MHz ($643.99, 100 MHz claimed) |
| Bandwidth 20% | 65 100 MHz claimed bandwidth | 65 100 MHz claimed bandwidth |
| Sample rate 10% | 62 500 MSa/s sampling | 81 1 GSa/s sampling |
| Memory 10% | 64 1 Mpts of memory | 100 70 Mpts of memory |
| Features 20% | 60 built-in multimeter, signal generator, built-in battery, touchscreen | 40 built-in battery, touchscreen, four channels |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| FNIRSI 2D15P | Micsig STO1004 | |
|---|---|---|
| Scope | ||
| Claimed bandwidth | 100 MHz | 100 MHz |
| Sample rate | 500 MSa/s | 1 GSa/s |
| Channels | 2 | 4 |
| Memory depth | 1 Mpts | 70 Mpts |
| Serial decode | No | No |
| Extras | ||
| Multimeter | Yes, 19,999 counts | No |
| Signal generator | Yes, up to 10 MHz | - |
| Build | ||
| Type | Handheld | Tablet |
| Display | 4.3 in | 8 in |
| Touchscreen | Yes | Yes |
| Built-in battery | Yes, 5,000 mAh | Yes, 7,500 mAh |