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Testo 868s Thermal Imaging Camera
Thermography connected – with the testo 868s thermal imaging camera. It has the best thermal image quality in its class, an integrated digital camera and stands out thanks to smart new features with intuitive operation in a modern tile appearance. The testo Thermography App turns your smartphone or tablet into a second display. In addition to this, you can operate the imager with the App as well as creating and sending reports on site.
testo ScaleAssist: All models
testo ε-Assist: 868s / 871s and 872s only
testo thermography app: 868s / 871s and 872s only
Compatible with testo 605i and 770-3: 871s and 872s only
When considering a thermal camera, thermal resolution is often the starting point. The testo 868s has 160 x 120 resolution, which is increased to 320 x 240 with testo SuperResolution software. This software enhances the thermal resolution by four times for more detailed thermal images.
The testo 868s thermal camera builds on the entry level testo 865s model, with a range of useful features including:
Thermal sensitivity and measuring range
The testo 868s is ideal for applications where more accurate temperature readings are required, or where a larger measuring range is needed, up to +650°C. The unit’s thermal sensitivity of 80mK provides the user with confidence that the camera is reporting measurements accurately and that small temperature differences are being recorded with a low margin of error. Also, auto hot / cold spot recognition allows fast pinpointing of problem areas.
Visual and thermal images
The addition of a visual digital camera means a normal image is taken in parallel to the thermal image. This allows for faster troubleshooting and interpretation of images, as both the real and thermal image can be seen together.
Testo thermography app
This app allows the user to quickly compile compact reports which can be saved online and easily sent via email. Images can also be streamed live to a smart device, effectively providing a second screen, allowing your customer to see exactly what you do in real time. This is ideal for when it may not be practical for the customer to be stood with the user, for example where there are high levels of noise.
Testo e assist
Via the integrated digital camera, the testo 868s recognises the reference sticker (e marker) and then automatically adjusts the emissivity setting depending on the emissivity and reflected temperature. This features helps reduce inaccurate measurements as a result of emissivity caused by user error. 3 e markers are included with the Testo 868s.
The testo 868 is a fixed focus thermal camera and has the same field of view as the Testo 865s at 31° x 23°, it also features testo’s Infrared Field Of View (IFOV) warner, a system that ensures the measurement spot size viewed by the user on the thermal image shows exactly what you are measuring. This greatly reduces the prospect for measurement errors.
| Infrared image output | |
| Infrared resolution | 160 x 120 pixels |
| Thermal sensitivity | 80 mK |
| Field of view (FOV) | 31° x 23° |
| Minimum focus distance | < 0.5m |
| Geometric resolution (IFOV) | 3.4 mrad |
| Testo Super Resolution (Pixel / IFOV) | 320 x 240 pixels (2.1 mrad) |
| Image refresh rate | 9Hz |
| Focus | Fixed focus |
| Spectral range | 7.5 to 14 μm |
| Visual image output | |
| Image size / min. focusing distance | at least 3.1 MP / 0.5m |
| Image presentation | |
| Image display | 8.9 cm (3.5″ TFT, QVGA (320 x 240 pixels) |
| Display options | IR image / real image |
| Colour palettes | Iron / rainbow HC / cold – hot / grey |
| Data interfaces | |
| WLAN connectivity | Communication with the testo Thermography App wireless modul BT/WLAN (EU, EFTA, USA, AUS, CDN, TR) |
| USB 2.0 Micro B | Yes |
| Measurement | |
| Measuring range | Measuring range 1: -30 to +100 °C Measuring range 2: 0 to +650°C |
| Accuracy | ±2 °C, ±2 % of measured value |
| Emissivity range | 0.01 to 1 |
| testo ε-Assist | Auto recognition of emissivity and determination of reflected temperature (RTC) |
| Measurement Functions | |
| Analysis function | Mean point measurement, hot/cold-spot recognition, Delta T |
| testo ScaleAssist | Included |
| IFOV warner | Included |
| Imager Equipment | |
| Digital camera | Included |
| Full screen mode | Included |
| JPEG storage | Included |
| Video Streaming | Via USB, via wireless LAN with test Thermography app |
| Standard lens | 31° x 23° |
| Image storage | |
| File format | .bmt; .jpg; export option in .bmp; .jpg; .png; .xls; .csv |
| Memory | Internal memory (2.8GB) |
| Power supply | |
| Battery type | Li-ion battery can be charged on-site |
| Operating time | 4 hours |
| Charging options | In instrument / in charging station (optional) |
| Mains operation | Yes |
| File format | .bmt; .jpg; export option in .bmp; .jpg; .png; .xls; .csv |
| Ambient conditions | |
| Operating temperature range | -15 to +50 °C |
| Storage temperature range | -30 to +60 °C |
| Air humidity | 20 to 80 %RH non-condensing |
| Physical features | |
| Weight | 510 g |
| Dimensions (LxWxH) | 219 x 96 x 95 mm |
| Housing | PC – ABS |
| Housing protection class (IEC 60529) | IP54 |
Testo thermal imaging comparison
| Testo 865 | Testo 868 | Testo 871 | Testo 872 | |
| Infrared resolution (pixels) | 160 x 120 | 160 x 120 | 240 x 180 | 320 x 240 |
| SuperResolution resolution (pixels) |
320 x 240 | 320 x 240 | 480 x 360 | 640 x 480 |
| NETD (thermal sensitivity) | 100mK | 80mK | 80mK | 50mK |
| Field of view (FOV) | 31° x 23° | 31° x 23° | 35° x 26° | 42° x 30° |
| Geometric resolution |
3,4 mrad | 3,4 mrad | 2,6 mrad | 2,3 mrad |
| Focus type | Fixed focus | Fixed focus | Fixed focus | Fixed focus |
| Min. focus distance | < 0,5 m | < 0,5 m | < 0,5 m | < 0,5 m |
| Intergrated digital camera | No | Yes | Yes | Yes |
| Laser marker | No | No | No | Yes |
| Measuring range | -20 to +280°C | -30 to +100°C 0 to +650°C |
-30 to +100°C 0 to +650°C |
-30 to +100°C 0 to +650°C |
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