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The thermal imager testo 865 is the ideal entry into the world of thermography. It stands out thanks to the best image quality in its class and handy operation, is robust enough to withstand tough daily use, and has useful functions for even better thermal images. And all this at a ground-breaking price-performance ratio. Switch on, aim, know more.
The testo 865 thermal imager offers professional technology and concentrates on functions that are needed in a contractor's daily work. The testo 865 is a user-friendly thermal imager, optimized for fast and efficient work. With the testo ScaleAssist functions ensuring optimum setting of the thermal image scale for building thermography and the IFOV warner making sure you avoid measurement errors, you will always generate the perfect infrared image.
Technical highlights of the testo 865 thermal imager
The testo 865 thermal imager stands out thanks to its easy operation and has the following impressive technical features:
Areas of application of the testo 865 thermal imager
Detect leaks, identify overheated connections, pinpoint thermal bridges or detect structural defects. The testo 865 thermal imager is ideal for applications in daily maintenance and installation work in trade and industry. It enables time-saving quality assurance and ensures reliable production control.
Preventive maintenance
Ideal for the early identification of imminent malfunctions or defects on plants and machines: Reliably record temperature increases with a thermal imager.
- Fast detection of critical thermal status (so-called HotSpots) during continuing operation
- Avoid expensive damage, downtimes and fire risks on plants and machines
- Electrical maintenance:
Test switching cabinets, electrical conditions, photovoltaic plants
Evaluate heat status in low, medium and high voltage plants
- Mechanical maintenance:
Identify wear on machines
Test motors, bearings, shafts
Detecting structural defects and ensuring construction quality
- Detect potential building defects, prove quality and the implementation of construction measures without contact – with the help of thermal images
- Test air-tightness of windows and doors
- Locate insulation errors and cold bridges in a building shell
- Detect and visualize mould-risk areas
Easy checking of heating systems and installations
- Test heating and air conditioning/ventilation systems: Use a thermal imager to identify irregularities in the temperature distribution quickly and easily
- Localization of the course of heating loops in underfloor heating systems
- Testo radiators for silting
- Measure flow and return temperatures
Localize pipe ruptures
- Reliably determine pipe ruptures with the help of a thermal imager – without unnecessarily opening walls and floors
- Precise localization of leakages in underfloor heating and other inaccessible pipe systems
Locating leaks in flat roofs
- Detection of damp in roofs: Based on temperature differences (such as occur mainly in flat roofs), thermal imagers show areas on the roof with sealed-in moisture or damaged insulation
Infrared image output | |
Spectral range | 7.5 to 14 µm |
Infrared resolution | 160 x 120 pixels |
Thermal sensitivity | 120 mK |
Field of view | 31° x 23° |
Minimum focus distance | <0.5 m |
Geometric resolution (IFOV) | 3.4 mrad |
SuperResolution (Pixel) | 320 x 240 pixels |
SuperResolution (IFOV) | 2.1 mrad |
Image refresh rate | 9 Hz |
Focus | Fixed focus |
Image presentation | |
Display type | 8.9 cm (3.5") TFT, QVGA (320 x 240 pixels) |
Display option | IR image only |
Colours | 4 (iron, rainbow, cold-hot, grey) |
Imager equipment | |
Full screen mode | Included |
JPEG storage | Included |
Video streaming | via USB |
Standard lens | 31° x 23° |
Interface | USB 2.0 Micro B |
Imager storage | |
File format image | .bmt; .jpg; export option in .bmp; .jpg; .png; .xls; .csv |
Storage device | Internal Memory (2.8 GB) |
Measurement | |
Measuring range | -20 to +280 °C |
Accuracy | ±2 °C, ±2 % of mv |
Emissivity | 0.01 to 1 |
Reflected temperature | manual |
Measuring function | |
Analysis function | Mean point measurement, hot/cold-spot recognition, Delta T |
IFOV warner | Included |
testo ScaleAssist | Included |
Ambient Condition | |
Operating temperature | -15 to +50 °C |
Storage temperature | -30 to +60 °C |
Air humidity | 20 to 80 %RH non-condensing |
Housing protection class | IP54 |
Vibration | 2G |
Power supply | |
Battery type | Fast-charging, Li-ion battery can be changed on-site |
Operating time | 4.0 h |
Mains operation | yes |
PC software | |
System requirements | Windows® 10; Windows® 8; Windows® 7 |
Physical specification | |
Dimensions | 219 x 96 x 95 mm |
Weight | 510 g |
Product-/housing material | PC - ABS |
Product colour | Black |
Display ligthing | bright / normal / dark |
Standards, tests | |
EU-/EG-guidelines | EMC: 2014/30/EU |
Buy with 100% confidence knowing your purchase is backed by the full Manufacturer's Warranty. Please register your product with provided warranty card.
Australia-wide Flat Rate shipping of $15.00 per order.
This includes multiple products up to 5kg only.
Additional cost applies for orders over 5kg. Contact us for quotation.