A low-cost big-screen scope for coins and light soldering with lots of room under the lens. It has no HDMI or PC output, so everything stays on its own screen.
Amazon $99.99The Andonstar AD210 and the Koolertron 9 in LCD Microscope are evenly matched, rated 3.1 and 3.0. The Andonstar AD210 leads on features. The Koolertron 9 in LCD Microscope wins on viewing. The Koolertron 9 in LCD Microscope costs $9.85 less ($90.14 vs $99.99).
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 battery-powered 9 in scope for coins and PCB inspection on a budget. The listing leaves out its video resolution and warranty.
Amazon $90.14Which should you buy?
- Choose the Andonstar AD210 for features (remote, under-stage light vs built-in battery).
- Choose the Koolertron 9 in LCD Microscope for viewing (9 in screen, PC vs 10.1 in screen).
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 | Andonstar AD210 | Koolertron 9 in LCD Microscope |
|---|---|---|
| Overall rating | 3.1/5 | 3.0/5 |
| Price 10% | 88 $99.99 | 93 $90.14 |
| Optics 25% | 25 1,080p live/video resolution | 50 video resolution not published (neutral score used) |
| Working distance 15% | 100 260 mm working distance | 50 working distance not published (neutral score used) |
| Viewing 20% | 50 10.1 in screen | 59 9 in screen, PC |
| Features 20% | 25 remote, under-stage light | 15 built-in battery |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Andonstar AD210 | Koolertron 9 in LCD Microscope | |
|---|---|---|
| Optics and imaging | ||
| Video resolution | 1080p | - |
| Photo resolution (stated) | 12 MP | - |
| Working distance | 260 mm | - |
| Autofocus | No | No |
| Viewing and output | ||
| Screen | 10.1 in | 9 in |
| Outputs | Screen only | PC |
| Measurement software | No | No |
| Remote | Yes | No |
| Stand and lighting | ||
| Stand | Pillar | Pillar |
| Stand height | 12.6 in | 10 in |
| Lights | Top, Under-stage | Top |
| Built-in battery | No | Yes |
