
Testo · Accu supplémentaire
Spare battery
Extend the operating time of your instruments and use the lithium-ion rechargeable battery as a second battery.

Testo · testo 865s
The testo 865 thermal imager combines all the important properties required for high-quality thermographic measurement – it is accurate, robust, fast and reliable. The testo 865 provides high-quality thermography at an affordable price and keeps going even in tough working conditions. The case supplied with the thermal imager means it can be conveniently transported, so it is always there for you when needed.
Category: Measuring instruments · Thermal imagers
| Ambient conditions | Value |
|---|---|
| Operating temperature | -15 to +50 °C |
| Storage temperature | -30 to +60 °C |
| Air humidity | 20 … 80 %RH (non-condensing) |
| Housing protection class (IEC 60529) | IP 54 |
| Vibration | 2G |
| Image presentation | Value |
|---|---|
| Colours | 4 (fer, arc-en-ciel HC, froid-chaud, gris) |
| Display options | IR image only |
| Display type | 8.9 cm (3.5") TFT, QVGA (320 x 240 pixels) |
| Camera equipment | Value |
|---|---|
| Video streaming (via USB) | via USB |
| Standard lens | 31° x 23° |
| Save JPEG | Included in delivery |
| Full-screen mode | Included in delivery |
| Interfaces | USB 2.0 Micro B |
| Image storage | Value |
|---|---|
| Single image file format | .bmt; .jpg; export possible as .bmp; .jpg; .png; .xls; .csv |
| Spare memory | Internal memory (2.8 GB) |
| Infrared image output | Value |
|---|---|
| Spectral bandwidth | 7.5 to 14 µm |
| Field of view | 31° x 23° |
| Focus | Fixed focus |
| Minimum focus distance | <0.5 m |
| Geometric resolution (IFOV) | 3.4 mrad |
| Refresh rate | 9 Hz |
| Infrared resolution | 160 x 120 pixels |
| SuperResolution IFOV | 2.1 mrad |
| SuperResolution resolution | 320 x 240 pixels |
| Thermal sensitivity | <0.1 °C (100 mK) |
| Measurement | Value |
|---|---|
| Accuracy | ± 2 °C, ± 2 % of mv |
| Emissivity | 0.01 to 1 |
| Measuring span | -20 ... +280 °C |
| Reflected temperature | Manual |
| Measurement functions | Value |
|---|---|
| Analysis function | Mean point measurement, hot / cold spot detection, Delta T |
| IFOV warner | Included in delivery |
| testo ScaleAssist | Included in delivery |
| PC software | Value |
|---|---|
| System requirements | Windows® 11 ; Windows 10; Windows® 8.1 |
| Physical characteristics | Value |
|---|---|
| Dimensions | 219 x 96 x 95 mm |
| Weight | 510 g |
| Product / housing material | PC - ABS |
| Power supply | Value |
|---|---|
| Battery type | Fast-charging lithium-ion battery, replaceable on site |
| Mains operation | Yes |
| Battery life | 4.0 h |
| Standards | Value |
|---|---|
| EU/EC directives | EMC : 2014/30/EU |
| General technical data | Value |
|---|---|
| Product colour | Black |
| Display illumination | bright / normal / dark |

Testo · Accu supplémentaire
Extend the operating time of your instruments and use the lithium-ion rechargeable battery as a second battery.

Testo · Bloc d'alimentation USB avec câble
Use the mains unit with micro USB for supplying the power to your measuring instrument (e.g. testo 400 IAQ measuring instrument). Thanks to the various plug types supplied, the mains unit is also suitable for international use.

Testo · Ruban adhésif
Use the emission tape when you are using your thermal imager to measure on reflective surfaces, for example metal.

Testo · Station de charge pour accumulateur, station de charge de table
Optimize the charging time for your instrument's battery with this rechargeable battery charging station. Simply charge an instrument battery in the charging station while another battery is actually in use. External battery charger for Testo instrument batteries, suitable for testo 871, testo 872, testo 868, testo 865, testo 330.

Testo · testo IRSoft v5.3
Free download: Use the software to process and analyze infrared images conveniently on a PC. Extensive investigative functions are available for professional thermal image processing.

Testo · testo 860i
The testo 860i wireless thermal imager for smartphones enables quick and easy determination of Delta T in the thermal image using the application-specific measurement functions DeltaHeat and DeltaCool. With crystal-clear thermal images thanks to high infrared resolution and simple operation via the testo Smart App, it offers flexible application options and high practicality for everyday use, either wirelessly or with one-handed operation directly on the smartphone.

Testo · testo 862-2
The testo 862-2 Electrical Kit combines the high-resolution testo 862-2 thermal imager with the advanced testo 770-3 TRMS clamp meter, offering an all-in-one solution for electrical and HVAC/R professionals. The wireless connection transmits accurate electrical measurements directly into the thermal image, streamlining workflow and improving troubleshooting efficiency.

Testo · testo 862-1
The new testo 862-1 brings a new level of clarity to your inspections. Compact enough to fit in any pocket, it captures sharp thermal images in seconds, while smart features ensure you never miss a spot.

Testo · testo 862-2
The new testo 862-2 brings a new level of clarity to your inspections. Compact enough to fit in any pocket, it captures ultra-sharp thermal images in seconds, while smart features ensure you never miss a spot.