Detector resolution is the number; the rest is image processing · review
A phone imager that gives its resolution as a pixel count and publishes neither a sensitivity nor an emissivity setting.
What the figures leave us with A neat 32-gram phone imager with the two features that suit the job it is sold for — a differential readout and time-lapse video — behind a listing that publishes almost none of what this shelf compares. The resolution appears only as a pixel count, 19,200, which is 160 × 120, and there is no sensitivity figure, no accuracy figure and no emissivity setting. The RISION on this shelf has the same detector for $139 and publishes all three.
NO sensitivity in mK. NO emissivity. NO accuracy figure.
Nineteen thousand two hundred pixels.
Which is 160 × 120. The RISION on this shelf says so in words, at $139.
This shelf’s introduction lists detectors as grids — 160 × 120, 256 × 192, 320 × 240 — because a grid gives the shape as well as the count.
A buyer comparing this against a 256 × 192 camera has to do the arithmetic themselves. The arithmetic: 49,152 against 19,200, two and a half times the measurements.
This and its TI250 sibling are the only cameras on this shelf whose resolution is published this way.
“Second is thermal sensitivity in millikelvin, which decides whether a faint difference appears at all.”
Four cameras on this shelf publish 40 mK.
The two that publish none are this one at $299.99 and the TI250 at $314.38 — the two most expensive cameras here.
Not a range. Not even the word “adjustable”.
“Emissivity adjustment matters because a shiny surface reports a temperature that is not its own.”
This is a camera sold for electrical work, and electrical work is full of bare copper and polished steel, which reflect their surroundings rather than radiating their own heat.
The workaround is matt tape on the spot you need to read. It is standard practice and it is also an admission.
Klein’s own TI250, fifteen dollars more, publishes 0.01 to 0.99.
A DIFFERENTIAL readout.
A thermal inspection is almost never about an absolute temperature. It is about one terminal being hotter than the two beside it.
Reading the difference directly saves subtracting two numbers, and it cancels most of the offset error people worry about — the same offset applies to both points.
Of the cameras on this shelf, this is the only one that names it as a mode.
A fifth of an inch of phone case.
That is a mechanical tolerance, not a thermal specification, and on a phone-attached camera it is the figure that decides whether the thing works at all on the phone in your pocket.
Nothing else on this shelf publishes it.
On sale at around 300 € on the American Amazon store at the time of checking.
Prices and availability are what Keepa reported on the date this page was updated; both move.
Prices quoted in this text were read on 8 October 2026. The live price is at the top of the page.
| Camera resolution | "19,200-PIXEL RESOLUTION", stated — as a COUNT and never as a grid. Nineteen thousand two hundred is 160 × 120, which is what the RISION on this shelf states explicitly for $139. This shelf's introduction lists resolutions as grids — 160 × 120, 256 × 192, 320 × 240 — because a grid tells you the shape of the image and a pixel count does not. This and its TI250 sibling are the only cameras on this shelf whose resolution is published in this form |
|---|---|
| Thermal sensitivity | NOT PUBLISHED. This shelf's introduction makes sensitivity in millikelvin the SECOND figure to read, and this listing gives none — at $299.99. Four cameras here publish 40 mK, including the $139 RISION with the same detector |
| Emissivity | NOT MENTIONED. There is no emissivity setting anywhere on the listing, and this shelf's introduction says why that matters: a shiny surface reports a temperature that is not its own. Klein's own TI250 publishes an adjustable range of 0.01 to 0.99; this camera, fifteen dollars cheaper, says nothing at all |
| Stated temperature range | −4 to 752 °F (−20 to 400 °C), stated. That is 150 degrees below the HSFTOOLS F2VW and 200 below the RISION, and the same ceiling as the HSFTOOLS P2W |
| Stated accuracy | NOT PUBLISHED. No tolerance figure of any kind appears on the listing, where five cameras on this shelf state ±2 °C (36 °F) or ±2% |
| Display and format | No screen of its own: the phone is the display, through a TOUCH SCREEN interface offering spot temperature, high and low temperatures, and a DIFFERENTIAL readout — the difference between two points, which is the measurement most inspections actually need. USB-C for iOS and Android, and the one dimension Klein does publish is a mechanical one: it fits phone cases up to 1/5 inch thick. 32 grams |
| Connectivity and storage | Images and video are stored on the phone, including a TIME-LAPSE video feature, which nothing else on this shelf publishes. Three color palettes — ironbow, rainbow and greyscale — against 12 on the RISION, 9 on the Raythink and 7 or 8 on the HSFTOOLS pair |
| Also stated | Klein names the applications precisely — "troubleshooting hot and cold spots in electrical and HVAC applications" — and the differential readout is built for exactly that. What it does not do is publish any of the four figures this shelf's introduction compares except the temperature range |
| Amazon reference | B0GGL2K5P5 |
| EAN | 0092644694813 |
At $300, it is the 4 cheapest of the 7 models in this category published here.
A hundred and sixty by a hundred and twenty, which multiplies to 19,200 — the standard entry-level thermal detector and the same one the RISION on this shelf publishes explicitly at $139. This shelf's introduction lists detector resolutions as grids because the grid tells you the shape of the image as well as the count. "Over 19,200 pixels", which is how Klein's TI250 puts it, is vaguer still. Nothing is being hidden exactly, but a buyer comparing this against a 256 × 192 camera has to do the arithmetic themselves, and the arithmetic says the 256 × 192 detector has two and a half times as many measurements.
On electrical work, yes, and this is a camera sold for electrical work. This shelf's introduction puts it plainly: a shiny surface reports a temperature that is not its own. Bare copper bus bar, polished steel, aluminum — all reflect their surroundings instead of radiating their own heat, and a camera with a fixed emissivity will read them far too cool. The workaround is a piece of matt tape or a dab of paint on the surface you need to read, which is standard practice and also an admission. Klein's own TI250, at fifteen dollars more, publishes an adjustable 0.01 to 0.99.
More than the palettes. A thermal inspection is almost never about an absolute temperature — it is about one terminal being hotter than the two beside it, or one circuit running warmer than its pair. A camera that shows you the difference between two chosen points directly saves reading two numbers and subtracting, and it cancels most of the error that worries people about absolute accuracy: whatever offset the camera has applies to both points. Of the cameras on this shelf, this is the only one that names differential readout as a mode.
Same category, nearby prices, between measuring instruments. What remains is the specifications every one publishes — half empty, a column is no use.
| Model | Price | Camera resolution | Stated accuracy | Connectivity and storage |
|---|---|---|---|---|
| Klein Tools Phone thermal imager, 19,200 pixels | $300 | "19,200-PIXEL RESOLUTION", stated — as a COUNT and never as a grid. Nineteen thousand two hundred is 160 × 120, which is what the RISION on this shelf states explicitly for $139. This shelf's introduction lists resolutions as grids — 160 × 120, 256 × 192, 320 × 240 — because a grid tells you the shape of the image and a pixel count does not. This and its TI250 sibling are the only cameras on this shelf whose resolution is published in this form | NOT PUBLISHED. No tolerance figure of any kind appears on the listing, where five cameras on this shelf state ±2 °C (36 °F) or ±2% | Images and video are stored on the phone, including a TIME-LAPSE video feature, which nothing else on this shelf publishes. Three color palettes — ironbow, rainbow and greyscale — against 12 on the RISION, 9 on the Raythink and 7 or 8 on the HSFTOOLS pair |
| Klein Tools Standalone imager, emissivity 0.01 to 0.99 | $314 | "OVER 19,200 PIXELS", stated. Nineteen thousand two hundred is 160 × 120 — and the word "over" makes this the vaguest resolution statement on the shelf. This shelf's introduction asks for a detector resolution as a grid; this gives neither a grid nor a definite count. The RISION here states 160 × 120 outright at $139, and the two HSFTOOLS cameras state 256 × 192, which is 49,152 points | NOT PUBLISHED, as on the TI223. Five cameras on this shelf publish ±2 °C (36 °F) or ±2% | Capture and save over USB-C. No Wi-Fi, no app, no storage capacity published — where the Raythink states 8 GB, the P2W 16 GB and both HSFTOOLS cameras offer Wi-Fi to a phone. Supplied with the imager, a charging cable, a carrying case and instructions |
| FLIR ONE Gen 3, phone thermal camera | $214 | 80 × 60 detector · 1440 × 1080 image | ± 3 °C (37 °F) or ± 5% stated | USB-C Android |
| Raythink Dual-lens imager, 320 × 240 upscaled | $200 | "BOOSTS thermal resolution to 320x240 in real time", stated — and NO NATIVE DETECTOR FIGURE APPEARS ANYWHERE on the listing. That makes it the only camera on this shelf that publishes the upscaled number alone. This shelf's introduction is explicit: the detector resolution is the only figure that describes what a camera can actually resolve, and it is routinely buried under a larger image resolution produced by upscaling. Here it is not buried; it is absent. The word "boosts" tells you there is a smaller number and not what it is | ±2 °C (36 °F) or ±2%, stated. Along with the RISION's ±3.6 °F and the HSFTOOLS pair's max(±3.6 °F, ±2%), that is the figure five cameras on this shelf publish and both Kleins do not | 8 GB internal storage, wireless transfer to a mobile app, and WINDOWS PC SOFTWARE for real-time display, temperature analysis and data export. Automatic maximum, minimum and center points plus SIX customisable spots, and high and low alarms |
Details checked on October 8, 2026.
An electrician who already carries Klein tools and wants thermal imaging on the phone already in their hand
Amazon reports what buyers took in the month before this page was last checked: at least 50.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for measuring instruments and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
256 × 192 px · −20 to +450 °C (842 °F) · IP54 · 2 m (7 ft) drop · dual power
A camera that quotes 256 × 192 with no upscaled figure beside it, in an IP54 body rated for a 2 m (7 ft) drop, running on a 12 V Li-ion pack or AA cells.
Best for: Site use, where the camera shares a bag with other tools and has to work on the first press.
80 × 60 detector · 1440 × 1080 image · ± 3 °C (37 °F) or ± 5% stated · USB-C Android
A phone-attached thermal camera whose listing states both numbers plainly: an 80 × 60 thermal detector behind a 1440 × 1080 displayed image, with accuracy given as ± 3 °C (37 °F) or ± 5%.
Best for: A first thermal camera for home inspection, where finding the cold spot matters more than resolving it finely.
≈ $214
256 × 192 DETECTOR stated, upscaled to 640 × 480 · VOx · under 40 mK, 0.04 °C (32 °F) · −4 to 752 °F (−20 to 400 °C) · max(±3.6 °F, ±2%) · emissivity AND distance adjustable · 3.5 in TOUCHSCREEN, the largest here · 8 MP visible cam — four times the Raythink and the F2VW · 5 image modes, 8 palettes · Wi-Fi + PC software with 3D plotting · 16 GB / 60,000 images / 54 h video · 4 h battery · IP54, 6.6 ft · $479
The most expensive camera on this shelf: the same 256 × 192 detector as the F2VW with a bigger touchscreen, four times the visible camera, and a lower temperature ceiling.
Best for: Reporting work, where the images go into a document and the 8 MP visible shot is half the evidence
≈ $479
