Testo 868 Thermal Imaging Camera – 160×120 (SuperResolution 320×240), 80 mK, −30…+650 °C, WLAN App Connection, 5 MP Digital Camera (0560 8681)

Testo 868 (product code 0560 8681) is a handheld thermal imaging camera that visualizes and measures surface temperature distribution without contact. Its 160 × 120 pixel infrared detector is increased to 320 × 240 pixel resolution with the integrated Testo SuperResolution technology and displays temperature differences below 0.08 °C (80 mK). It offers a −30 … +650 °C measuring range, a 5 MP digital camera and connection to the Testo Thermography App via WLAN. It is used for maintenance checks of heating and cooling installations, building insulation, electrical panels and machines.

Thermal Imaging for Installation, Building and Electrical Inspection

The camera performs center point, automatic hot/cold spot and two-point temperature difference (delta T) analyses. The IFOV warner marks on the image the area that can be measured accurately at the measuring distance, preventing measurement errors on small objects. With the Testo ε-Assist function, the supplied ε-markers are stuck onto the surface being measured; the camera automatically determines and sets the emissivity and reflected temperature. Testo ScaleAssist automatically adjusts the thermal image scale for comparable images in building thermography.

In installation applications it is used to determine the routing of underfloor heating circuits, check radiators for sludge buildup, see flow and return temperatures, and find pipe leaks without unnecessarily breaking walls or floors. Overheating connections in electrical panels, and insufficient insulation and thermal bridges in buildings, are detected quickly.

With the Testo Thermography App (iOS and Android), reports are prepared and sent on site, and a smartphone or tablet is used as a second display or remote control. Images are also saved as JPEG; detailed analysis and reporting are carried out with the free Testo IRSoft PC software. The camera is carried in its supplied case.

Technical Specifications (Official Testo Information)

• Brand / Model: Testo 868 thermal imaging camera · product code 0560 8681
• Infrared Resolution: 160 × 120 pixels · 320 × 240 pixels with SuperResolution
• Thermal Sensitivity (NETD): < 80 mK (< 0.08 °C)
• Field of View / Min. Focus Distance: 31° × 23° / < 0.5 m · fixed focus
• Geometric Resolution (IFOV): 3.4 mrad · 2.1 mrad with SuperResolution
• Image Refresh Rate / Spectral Range: 9 Hz / 7.5 … 14 µm
• Measuring Range: −30 … +100 °C and 0 … +650 °C (manual or automatic switching)
• Accuracy: ±2 °C or ±2% of measured value (±3 °C in the range −30 … −20 °C)
• Emissivity / Reflected Temperature: 0.01 … 1 manual setting · automatic with Testo ε-Assist
• Analysis Functions: center point, hot/cold spot, delta T, IFOV warner, Testo ScaleAssist
• Display: 8.9 cm (3.5 inch) TFT, 320 × 240 pixels · infrared or real image · 4 color palettes (gray, cold-hot, iron, rainbow HC)
• Digital Camera: 5 MP, min. focus distance < 0.5 m
• Storage: internal memory, more than 1000 images · .jpg and .bmt · export as .bmp, .jpg, .png, .csv, .xls
• Connectivity: WLAN (Testo Thermography App) · USB 2.0 micro B · video streaming via USB
• Power: Li-ion rechargeable battery 3500 mAh · approx. 4 hours operation at +20 °C · charging in the instrument in approx. 3 hours · mains operation
• Operating / Storage Temperature: −15 … +50 °C / −30 … +60 °C · 20 … 80% relative humidity (non-condensing)
• Protection Class: IP54 (IEC 60529) · vibration 2g · max. operating altitude 2000 m

Scope of Delivery

• Testo 868 thermal imaging camera (with WLAN radio module)
• USB cable and charging adapter
• Li-ion rechargeable battery
• Professional analysis software (free download)
• 3 × Testo ε-markers
• Commissioning instructions, short guide and test protocol
• Carrying case

Technician Recommendations

• Set the emissivity with a marker: on surfaces such as pipes, radiators and panels, stick on the ε-marker and use ε-Assist; incorrect emissivity distorts the measured temperature.
• Watch out for reflections on shiny surfaces: shiny metal and glass surfaces reflect surrounding heat sources; apply emissivity tape or a marker to the measuring point.
• Follow the IFOV warning: on small connections and terminals, move the camera closer if the measuring area in the image is larger than the target.
• Take comparative images: record the healthy and the faulty point in the same circuit with the same scale and palette; the difference is clearer in the report.
• Do not leave it outdoors permanently: the camera is IP54 protected but is not suitable for permanent outdoor use.

Technical document: Testo 865 / 868 / 871 / 872 thermal imaging camera catalog (PDF, Turkish)