Description
Heat leaves evidence. A failing bearing runs warmer than the one beside it, a loose terminal glows a few degrees hotter than its neighbours, and a blocked duct shows up as a cold patch on a ceiling. The A-BF RX-500 makes that evidence visible at a 256 x 192 infrared resolution, across a range from minus 20 to plus 550 degrees C, with an IFOV of 3.75 mrad that resolves small targets from a working distance.
The imager fits a hand. It measures 90 x 105 x 223 mm, carries a 2200 mAh removable lithium battery, stores captures to 4 GB of internal eMMC memory, and moves images over USB Type-C. Five colour palettes, including rainbow and iron oxide red plus high-contrast black and white options, let the thermographer choose the rendering that makes a fifteen-degree delta obvious rather than arguable. Menu languages cover English, Chinese, German and Italian, and the display sits in the 2.0 to 3.9 inch class, sized for outdoor use with both hands free on a ladder or a panel.
Used as a first pass on a facility walk, it turns maintenance from a schedule into a finding: which breaker is warm, which motor is drifting, which wall hides a leak.
You cannot manage a temperature you cannot see.
Key Features
- ✦ 256 x 192 pixel infrared resolution with 3.75 mrad IFOV
- ✦ Measurement range from minus 20 to plus 550 degrees C
- ✦ Five colour palettes including rainbow, iron oxide red and black and white
- ✦ 2200 mAh removable lithium battery
- ✦ 4 GB internal eMMC storage with USB Type-C transfer
- ✦ Measuring distance from 0.2 m to 40 m, best results around 1 m
- ✦ English, Chinese, German and Italian menu languages
Technical Specifications
- Infrared resolution: 256 x 192 pixels
- Temperature range: minus 20 to plus 550 degrees C (minus 4 to plus 1022 degrees F)
- IFOV: 3.75 mrad
- Measuring distance: 0.2 m to 40 m, optimum around 1 m
- Display: 2.0 to 3.9 inch class screen
- Battery: 2200 mAh dedicated removable rechargeable lithium
- Storage: 4 GB built-in eMMC
- Data communication: USB Type-C
- Product size: 90 x 105 x 223 mm, handheld
- Colour palettes: Rainbow, iron oxide red, cold colour, black and white, white and black
Application Scenarios
Electrical contractors use the imager on distribution boards to find overloaded breakers and loose terminations before they fail. Maintenance teams walk mechanical rooms to compare motor and pump temperatures across a run, prioritising the unit that is drifting. Building surveyors scan walls and ceilings for insulation gaps and moisture, where the thermal signature is the only visible clue. HVAC technicians check duct runs and coil performance, and automotive workshops use it to trace a misfire or a hot brake caliper.
Frequently Asked Questions
Q: What temperature range does it measure?
From minus 20 to plus 550 degrees C, which covers electrical, mechanical and building diagnostics in one instrument.
Q: How well does it resolve small targets?
The infrared resolution is 256 x 192 pixels with an IFOV of 3.75 mrad, so a small component can be isolated from a working distance. Best measurement performance is around 1 m, with usable results from 0.2 m to 40 m.
Q: Can I store and transfer images?
Yes. Captures are saved to 4 GB of internal eMMC storage and transferred over USB Type-C.
Q: How is it powered?
A dedicated 2200 mAh removable rechargeable lithium battery powers the unit, which allows a spare to be carried for long survey days.
Q: Which colour palette should I use?
Rainbow and iron oxide red give the strongest temperature contrast for most inspections, while the black and white palettes are useful for detailed edge definition in bright conditions.
Q: Can it measure equipment that is running?
Yes. Measurement is non-contact, so energised panels, rotating shafts and hot exhaust components can be checked from a safe distance without shutting a line down.
Q: Is specialist training required to use it?
No. Point the imager at the surface, read the screen and select the palette that shows the contrast best. A few practice readings on a known heat source are enough to build confidence in the numbers.








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