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 |