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TOPDON · TOPDON TC002C Duo Thermal Imaging Camera for Any USB-C iPhone iPad Android
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Verdict
The TC002C Duo is the plug-in thermal camera to consider if you have a USB-C iPhone and want more pixels than FLIR offers. The listing documents a 256×192 detector upscaled to 512×384 with TISR, 25 Hz refresh, 40 mK thermal sensitivity, a range of -20 °C to 550 °C and accuracy of ±2 °C or ±2%. It weighs about 30 g, needs no battery, and works with USB-C iPhones, iPads, Android phones and Windows PCs through the TopInfrared app. Its limits are the ones common to the class: no aligned visible-light overlay, fixed focus, and a compatibility list that the listing itself flags as incomplete for some devices. For the price of a FLIR ONE Pro it delivers a larger detector; for FLIR’s MSX and guided inspections you pay with resolution.
Who It Is For
- iPhone 15 and newer owners who want a thermal camera that plugs in and works.
- Home inspectors, HVAC technicians and electricians who carry one phone across platforms.
- Anyone who wants to use the same camera on a Windows laptop for bench work.
Documented Specifications
| Item | Documentation |
|---|---|
| Thermal detector | 256×192, TISR upscaling to 512×384 |
| Refresh rate | 25 Hz |
| Thermal sensitivity | 40 mK |
| Measurement range | -20 °C to 550 °C (-4 °F to 1,022 °F) |
| Accuracy | ±2 °C or ±2% |
| Working distance | Up to 5 m (16.4 ft) |
| Connector and platforms | USB-C; iOS, Android, Windows (see listing caveats) |
| Size and weight | 71 × 42 × 14 mm, 30 g |
| App | TopInfrared; photo and video, waveform, custom temperature limits |
Sensitivity, Refresh and What They Mean
Thermal sensitivity (NETD) of 40 mK means the camera can distinguish temperature differences of a few hundredths of a degree, which is what makes a damp patch on drywall or a slightly warm neutral visible as a distinct shade rather than noise. The 25 Hz refresh means the image follows the hand without lag. Together with the 256×192 detector, these are the three numbers to compare between plug-in cameras, and on all three the TC002C Duo is ahead of the 160×120 FLIR ONE Pro. Our guide on comparing resolution explains how to weigh detector size against sensitivity.
App and Measurement
The TopInfrared app shows live temperature with adjustable high and low limits that colour the display when exceeded, a waveform view of temperature change, and photo and video recording. Point, line and area measurement follow the same pattern as the rest of TOPDON’s range. Emissivity can be set, which matters for shiny metal; see how to set emissivity. There is no built-in visible-light lens on the TC002C Duo; the dual-lens option in TOPDON’s range is the TC001 Max.
Compatibility Notes
The listing is unusually candid: it states the camera was not compatible with Mac or with Android 16 devices at the time of listing. Owners report that most current USB-C iPhones and mainstream Android phones work, and that the camera can be used through many cases. Because plug-in cameras depend on the phone’s USB implementation, it is worth checking TOPDON’s current compatibility list before buying for an unusual device. The Windows support is a quiet advantage: on a laptop the camera can be left pointed at a board or a motor for an hour and the waveform view becomes a simple temperature logger, which is how several electronics owners describe using it.
Strengths
- 256×192 detector with 40 mK sensitivity and 25 Hz refresh.
- Works across iOS, Android and Windows on one connector.
- No battery; 30 g body.
- Wide measurement range and custom limit alarms.
Limitations
- No aligned visible-light camera.
- Stated exclusions for Mac and Android 16 at the time of listing.
- Fixed focus; no radiometric desktop workflow.
How It Compares
The TC002 is the Lightning predecessor for older iPhones. The TC001 is the Android model with an extension cable. The TC001 Max adds a visible-light lens for fusion. The FLIR ONE Pro is the direct competitor on USB-C iPhones with MSX and a lower-resolution detector. For a wireless option that avoids the port question entirely, see the FLIR Edge Pro.
How We Research
This review is based on TOPDON’s published specifications, the Amazon listing for the TC002C Duo and owner reports. We did not run laboratory tests.
Recommended Tools
Products shown because their documented specifications fit this guide. Price and availability are on Amazon and can change.
Frequently Asked Questions
Which devices does the TC002C Duo support?
The listing states all USB-C smartphones and tablets across iOS, Android and Windows, with a note that Mac and Android 16 devices were not supported at the time of listing.
What does Duo mean?
It is the updated version of the TC002C. The listing describes it as an upgrade with broader USB-C compatibility; the detector specification is the same 256×192 class.
How far away can it measure?
The listing quotes a working distance of up to 5 m (16.4 ft) for reading temperature differences.
Does it have its own battery?
No. It is powered by the phone through the USB-C port.
Affiliate disclosure: Akermin earns a commission from qualifying Amazon purchases made through links on this page. Our editorial picks are based on documented specifications and owner feedback, not commissions.
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