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FLIR · Flir C5 Compact Thermal Imaging Camera, WiFi, 160x120 MSX, Ignite
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Verdict
The FLIR C5 is the camera that made thermal imaging a routine tool rather than a scheduled activity. The listing states 160 by 120 true thermal imaging at 19,200 pixels, a measurement range of -20 to 400 C, patented MSX image enhancement, WiFi and FLIR Ignite cloud. None of those numbers are remarkable on their own. What is remarkable is the format: it goes in a pocket, which means it is present at the moment somebody says the wall feels cold.
Documented Specifications
| Item | Manufacturer listing |
|---|---|
| Thermal resolution | 160 x 120 true thermal, 19,200 pixels |
| Temperature range | -20 to 400 C (-4 to 752 F) |
| Image enhancement | Patented MSX, embossing visual detail on the thermal image |
| Connectivity | WiFi |
| Cloud | FLIR Ignite |
| Format | Pocket size handheld |
The listing does not publish thermal sensitivity, accuracy or field of view. Those are on the datasheet and matter if you are comparing against another camera on optics.
The Format Is the Feature
A tool that requires a decision to bring gets used when you already suspect the answer. A tool in your pocket gets used speculatively, and speculative use is where thermal imaging finds things nobody was looking for: the radiator that is cold at the bottom, the circuit that runs warmer than its neighbours, the patch of ceiling that is three degrees below the rest.
That is not a specification, and it is the main reason the C5 appears in so many toolbags belonging to people who are not thermographers. Plumbers, electricians, restoration technicians and inspectors carry it as a secondary instrument, and it earns its place by being there.
What 160 by 120 Can and Cannot Do
Thermal faults come in two sizes. Building faults are large: a cold band along a rim joist, a wet area spreading through a ceiling, a loop of underfloor heating that is not flowing. These are tens of centimetres across, produce clear gradients, and are perfectly visible at 19,200 pixels from a few metres.
Equipment faults are small: a lug, a terminal, a bearing, a fuse clip. Those are centimetres across and usually viewed from behind a barrier. At 160 by 120 a small warm object shares a pixel with the cooler metal around it, and the camera reports the average, so the fault looks milder than it is. That is the honest limit of this camera, and it is set by physics rather than by FLIR.
MSX Makes Images Understandable, Not More Accurate
MSX takes edges from the visible camera and embosses them into the thermal image, so a breaker label, a pipe hanger or a socket outline appears inside the heat map. It is genuinely valuable, because a thermal image without context is a coloured blob that needs a second photograph to explain it. What it does not do is add thermal detail. The measurement underneath is still 19,200 samples, and an MSX image that looks crisp can still be a low resolution measurement.
The 400 C Ceiling in Practice
Buildings, electrical installations and plumbing never approach 400 C. Combustion equipment, flues, kilns, exhaust components and some process machinery do. Point any camera at something above its stated ceiling and the reading saturates, giving a confidently wrong number rather than an obvious error. If flue work is in your week, the E8 Pro states 550 C.
Getting Useful Images
- Shiny metal reflects. A bright busbar can show the reflection of your own body heat rather than its own temperature. Look for painted or oxidised surfaces or apply tape with known emissivity.
- Compare rather than measure absolutely. Three identical connections and one warmer than the others is a stronger finding than any single number.
- Look for faults under load. A cold circuit hides everything.
- Let the camera settle after coming in from the cold, since the camera body’s own temperature affects readings.
Strengths
- Pocket format, so it is present when it is needed.
- True thermal 160 by 120 rather than an upscaled figure.
- MSX makes images identify their own subject.
- Ignite cloud removes the card reader from reporting.
Limitations
- No sensitivity, accuracy or field of view published in the bullets.
- 160 by 120 is not enough for small targets at distance.
- 400 C ceiling rules out combustion and process work.
- Pocket format is less steady over a long session than a pistol grip.
How It Compares
The C8 puts 320 by 240 in the same body. The E5 Pro puts the same detector in a pistol grip. The TOPDON TC004 Mini is the budget standalone alternative. Our ranking is in the thermal imaging camera roundup.
How We Research
All figures come from the manufacturer listing and FLIR’s published documentation. We did not run laboratory tests and publish no measurements of our own.
Recommended Tools
Products shown because their documented specifications fit this guide. Price and availability are on Amazon and can change.
Frequently Asked Questions
What resolution is the C5?
The listing states 160 by 120 true thermal imaging, described as 19,200 pixels, with MSX image enhancement on top. MSX sharpens the appearance using the visible camera and does not add thermal data.
What temperature range does it cover?
The listing states -20 to 400 C, or -4 to 752 F. That covers building, electrical and plumbing work comfortably and stops short of flue and process temperatures.
Is 160 by 120 enough?
For large targets at short range, yes. Damp patches, missing insulation, underfloor heating loops and blocked radiators are all obvious at this resolution. Small connections viewed from a safe distance are not, and that is where 320 by 240 earns its money.
What is FLIR Ignite?
Cloud storage and sharing for images taken on the camera, so a report can be assembled without pulling a memory card.
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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