Download: testo 865 Thermal imager Data Sheet
Thermal imager testo 865 with integrated testo SuperResolution, USB cable, mains unit, Lithium ion rechargeable battery, pro software (free download), quick-start guide, short instructions, calibration certificate and case
- Infrared resolution 160 x 120 pixels
testo SuperResolution to 320 × 240 pixels - Automatic recognition of hot-cold spots
Technical data
| Infrared image output | |
| Infrared resolution | 160 x 120 pixels |
| Thermal sensitivity (NETD) | 120 mK |
| Field of view/min. focusing distance |
31° x 23° /
< 0.5 m |
| Geometric resolution (IFOV) | 3.4 mrad |
| testo SuperResolution (Pixel/IFOV) | 320 x 240 pixels
2.1 mrad |
| Image refresh rate | 9 Hz |
| Focus | Fixed focus |
| Spectral range | 7.5 to14 µm |
| Image presentation | |
| Image display | 8.9 cm (3.5″) TFT, QVGA (320 x 240 pixels) |
| Display options | IR image |
| Colour palettes | iron, rainbow HC, cold-hot, grey |
| Data interfaces | |
| USB 2.0 Micro B |
✓ |
| Measurement | |
| Measuring range | -20 to +280 °C |
| Accuracy | ±2 °C, ±2 % of measurement value (larger value applies) |
| Emissivity /
reflected temperature compensation |
0.01 to 1 / manual |
| Measurement functions | |
| Analysis functions | Mean point measurement, hot/cold-spot recognition, Delta T, |
| testo ScaleAssist | ✓ |
| IFOV warner | ✓ |
| Imager equipment | |
| Lens | 31° x 23° |
| Video streaming | via USB |
| Storage as JPG | ✓ |
| Fullscreen mode | ✓ |
| Image storage | |
| File format | .bmt and .jpg; export options in .bmp, .jpg,
.png, .csv, .xls |
| Memory | Internal memory (2.8 GB) |
| Power supply | |
| Battery type | Li-ion battery can be changed on-site |
| Operating time | 4 hours |
| Charging options | In instrument/in charging station (optional) |
| Mains operation | ✓ |
| Ambient conditions | |
| Operating temperature range |
-15 to +50 °C |
| Storage temperature range |
-30 to +60 °C |
| Air humidity | 20 to 80 %RH, not condensing |
| Housing protection class (IEC 60529) |
IP54 |
| Vibration (IEC 60068-2-6) | 2G |
| Physical features | |
| Weight | 510 g |
| Dimensions (LxWxH) | 219 x 96 x 95 mm |
| Housing | PC – ABS |
| PC software | |
| System requirements |
Windows 10, Windows 8, Windows 7 |
| Standards, tests | |
| EU directive |
2014/30/EU |

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