Description
The testo 868 thermal imager was developed for use in daily maintenance and installation work in construction and industry. It ensures fast and reliable defect detection and technical maintenance.
Key Technical Specifications of the testo 868 Thermal Imager
A combination of unique ease of use with professional measuring technology: the testo 868 thermal imager boasts the following impressive technical characteristics:
- Very good image quality thanks to high resolution: 19,200 temperature measurement points provide highly accurate thermograms. The detector size is 160 x 120 pixels, and the integrated SuperResolution technology increases the resolution to 320 x 240 pixels
- Visualization of temperature difference from 0.10 °C
- The testo Thermography App allows you to write reports right at the measuring site, save them on your mobile device, and send them via e-mail, as well as use your mobile device as a second display or a remote control for the thermal imager
- The integrated digital camera captures a real image in addition to the thermogram
- Automatic hot and cold spot recognition allows you to see the critical thermal status directly on the display
- The testo ScaleAssist function automatically sets optimal temperature scale settings, which allows you to obtain error-free thermograms that are suitable for objective comparison, for example, when checking building airtightness
- The testo ϵ-Assist function ensures accurate measurement results by automatically determining and setting the values for emissivity and reflected temperature
- The IFOV warner function determines the distance to the measured object and the size of the smallest measurement spot that is shown on the thermogram. This allows you to avoid measurement errors, as the display shows you exactly what you can measure
- Professional software for image analysis on a PC
- You can save thermograms in JPEG format
Scope of Delivery
testo 868 thermal imager, including WLAN wireless module, USB cable, power supply unit, Lithium-ion battery, professional software, a set of 3 ϵ-markers, quick start guide, brief application instructions, factory calibration protocol, and case.
Technical Data (Order No. 0560 8681)
Infrared Image
| Focus: | Fixed focus |
| Infrared Resolution: | 160 x 120 pixels |
| Frame Rate: | 9 Hz |
| Spatial Resolution (IFOV): | 3.4 mrad |
| SuperResolution (IFOV): | 2.1 mrad |
| SuperResolution (Pixels): | 320 x 240 pixels |
| Minimum Focus Distance: | <0.5 m |
| Field of View: | 31° x 23° |
| Thermal Sensitivity: | 100 mK |
| Spectral Range: | 7.5 … 14 µm |
Real Image
| Minimum Focus Distance: | 0.5 m |
| Image Size: | at least 3.1 MP |
Image Presentation
| Display Option: | IR/Real image |
| Color Palette: | 4 (iron, rainbow, cold-hot, grey) |
| Display Type: | 8.9 cm (3.5″) TFT, QVGA (320 x 240 pixels) |
Measurement
| Measurement Range: | -30°C … +100°C; 0°C … +650°C |
| Accuracy: | ±2 °C, ±2 % of meas. val. |
| Emissivity: | 0.01 … 1 |
| Reflected Temperature: | Manual |
| testo ϵ-Assist Function: | Included in scope of delivery |
Measurement Function
| Analysis Function: | Center spot measurement, hot/cold spot recognition, temperature difference |
| testo ScaleAssist Function: | Included in scope of delivery |
| IFOV warner Function: | Included in scope of delivery |
Thermal Imager Equipment
| Digital Camera: | Included in scope of delivery |
| Full Screen Mode: | Included in scope of delivery |
| Image Storage in JPEG format: | Included in scope of delivery |
| Video Data Transfer: | Wirelessly via the testo Thermography App |
| Standard Lens: | 31° x 23° |
| Interface: | USB 2.0 Micro B |
| Wireless Connection: | Communication with the testo Thermography App via WLAN wireless module |
Storage
| Image File Format: | .bmt; Export option to .bmp; .png; .csv; .xls; .jpg |
| Data Storage Medium: | Internal memory (2.8 GB) |
Power Supply
| Battery Type: | Fast-charging Lithium-ion battery (replaceable on the measuring site) |
| Operating Time: | 4 h |
| Mains Operation: | Yes |
Environmental Conditions
| Protection Class (Housing): | IP54 |
| Vibration: | 2G |
| Air Humidity: | +20 … +80% non-condensing |
| Storage Temperature: | -30 … +60 °C |
| Operating Temperature: | -15 … +50 °C |
Physical Characteristics
| Housing: | ABS, Polycarbonate |
| Weight: | 510 g |
| Dimensions: | 219 x 96 x 95 mm |
PC Software
| System Requirements: | Windows® 10; Windows 8; Windows 7 |
Standards/Warranty and General Technical Data
| EU Directives: | EMC: 2014/30/EU; RED: 2014/53/EU |
| Product Color: | Black |
| Display Illumination: | Bright / Normal / Dark |





