Andonstar AD246S-M
#6 in DigitalFull review
A budget all-rounder for soldering and coins with 4K HDMI out and a boom stand. Pick the 10.1 in AD249S-M if you will work from its own screen.
Amazon $139.99$139.99
The Andonstar AD246S-M is the better microscope overall, rated 3.8 to 3.0. The Andonstar AD246S-M leads on features and viewing. The Koolertron 9 in LCD Microscope wins on price. The Koolertron 9 in LCD Microscope costs $49.85 less ($90.14 vs $139.99).
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.
Koolertron 9 in LCD Microscope
#11 in DigitalFull review
A battery-powered 9 in scope for coins and PCB inspection on a budget. The listing leaves out its video resolution and warranty.
Amazon $90.14$90.14
Which should you buy?
- Choose the Andonstar AD246S-M for features (measurement software, remote, boom or flex-arm stand vs built-in battery) and viewing (7 in screen, HDMI, PC vs 9 in screen, PC).
- Choose the Koolertron 9 in LCD Microscope for price ($90.14 vs $139.99).
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 | Andonstar AD246S-M | Koolertron 9 in LCD Microscope |
|---|---|---|
| Overall rating | 3.8/5 | 3.0/5 |
| Price 10% | 69 $139.99 | 93 $90.14 |
| Optics 25% | 100 2,160p live/video resolution | 50 video resolution not published (neutral score used) |
| Working distance 15% | 50 working distance not published (neutral score used) | 50 working distance not published (neutral score used) |
| Viewing 20% | 70 7 in screen, HDMI, PC | 59 9 in screen, PC |
| Features 20% | 55 measurement software, remote, boom or flex-arm stand | 15 built-in battery |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Andonstar AD246S-M | Koolertron 9 in LCD Microscope | |
|---|---|---|
| Optics and imaging | ||
| Video resolution | 2160p | - |
| Magnification claim (not scored) | Lens L 15-60x on screen (with 3x digital zoom) | - |
| Interchangeable lenses | 3 | - |
| Autofocus | No | No |
| Viewing and output | ||
| Screen | 7 in | 9 in |
| Outputs | HDMI, PC | PC |
| Measurement software | Yes | No |
| Remote | Yes | No |
| Stand and lighting | ||
| Stand | Boom | Pillar |
| Stand height | - | 10 in |
| Lights | Top | Top |
| Built-in battery | No | Yes |