A bigger-screen DM9 with a taller stand that suits coin collectors and occasional soldering. Choose a 4K model if you plan to record or use a large monitor.
Amazon $129.99The TOMLOV DM9 Max is the better microscope overall, rated 2.9 to 2.6. The TOMLOV DM9 Max leads on viewing. The Koolertron 7 in LCD Microscope wins on price. The Koolertron 7 in LCD Microscope costs $40 less ($89.99 vs $129.99).
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.
A cheap portable screen scope for coins, stamps and quick looks at a board. It can’t send its picture anywhere else.
Amazon $89.99Which should you buy?
- Choose the TOMLOV DM9 Max for viewing (10.1 in screen, PC vs 7 in screen).
- Choose the Koolertron 7 in LCD Microscope for price ($89.99 vs $129.99).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every digital microscope; a clear win is highlighted. How we rank explains each one.
| Factor weight | TOMLOV DM9 Max | Koolertron 7 in LCD Microscope |
|---|---|---|
| Overall rating | 2.9/5 | 2.6/5 |
| Price 10% | 74 $129.99 | 94 $89.99 |
| Optics 25% | 25 1,080p live/video resolution | 25 1,080p live/video resolution |
| Working distance 15% | 50 working distance not published (neutral score used) | 50 working distance not published (neutral score used) |
| Viewing 20% | 70 10.1 in screen, PC | 20 7 in screen |
| Features 20% | 15 remote | 15 built-in battery |
| Warranty 10% | 25 2-year warranty | 0 warranty not published, scored as none |
Specifications
| TOMLOV DM9 Max | Koolertron 7 in LCD Microscope | |
|---|---|---|
| Optics and imaging | ||
| Video resolution | 1080p | 1080p |
| Photo resolution (stated) | 20 MP | 12 MP |
| Magnification claim (not scored) | 5-1500x | 1-1200x |
| Autofocus | No | No |
| Viewing and output | ||
| Screen | 10.1 in | 7 in |
| Outputs | PC | Screen only |
| Measurement software | No | No |
| Remote | Yes | No |
| Stand and lighting | ||
| Stand | Pillar | Pillar |
| Stand height | 12.6 in | - |
| Lights | Top | Top |
| Built-in battery | No | Yes |
| Build | ||
| Warranty | 2 years | - |
