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.
Category: Measuring instruments · Thermal imagers
| Ambient conditions | Value |
|---|---|
| Operating temperature | -10 to +50 °C |
| Storage temperature | -20 to +70 °C |
| Air humidity | 5 … 95 %RH non-condensing |
| Vibration | IEC 60068-2-6 |
| Drop test | 1.5 m |
| Visual image output | Value |
|---|---|
| Minimum focus distance | 0.4 m |
| Image size | 640 x 480 pixels |
| Image presentation | Value |
|---|---|
| Colours | Iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HT, hygrometric palette |
| Digital zoom | Yes |
| Display options | IR image / real image |
| Note | (in the testo Smart App) |
| Camera equipment | Value |
|---|---|
| Full-screen mode | Yes |
| WLAN connectivity | Communication with the testo Smart App; WLAN: IEEE 802.11a/n/ac* |
| Bluetooth | Peer-to-peer advertising for fast connection set-up* |
| Remote control | Up to 10 m from the mobile device (via WLAN) |
| Note | * An overview of the radio approvals by country is given in the testo 860i Quick Start Guide. |
| Image storage | Value |
|---|---|
| Single image file format | .bmt; .jpg; .csv |
| Spare memory | On the mobile device |
| Infrared image output | Value |
|---|---|
| Spectral bandwidth | 8 to 14 µm |
| Field of view | 48° x 36° |
| Focus | Fixed focus |
| Minimum focus distance | 0.3 m |
| Refresh rate | 9 Hz |
| Infrared resolution | 256 x 192 pixels |
| Thermal sensitivity | 50 mk |
| Measurement | Value |
|---|---|
| Accuracy | ±3 °C or ±3 % of mv (at an ambient temperature of -10 to +40 °C and a scene temperature of 0 to +150 °C or +100 to +350 °C) |
| Emissivity | 0.01 ... 1 |
| Measuring span | -20 ... +350 °C |
| Reflected temperature | manual; (via testo Smart App) |
| Measurement functions | Value |
|---|---|
| Analysis function | Hot/cold spot, delta T, up to 10 freely selectable individual measuring points, area measurement (min/max over area) |
| Manual "electrical" mode | Current, voltage, power |
| Manual "humidity" mode | Yes |
| Humidity measurement with hygrometer | Automatic transfer of readings from the optional testo 605i or testo 625 thermo-hygrometers to the testo Smart App via Bluetooth |
| Electrical measurement with clamp meter | Automatic transfer of readings from the optional testo 770-3 clamp meter to the testo Smart App via Bluetooth |
| Application-specific measurement functions | DeltaHeat; DeltaCool; humidity mode |
| Note | (in the testo Smart App) |
| PC software | Value |
|---|---|
| System requirements | Windows 10; Windows® 11 |
| Note | (testo IRSoft) |
| Physical characteristics | Value |
|---|---|
| Dimensions | 165 x 45 x 38 mm |
| Weight | 195 g |
| Tripod mounting | 1/4" - 20UNC |
| Attachment to mobile device | Clip width: 134 mm min., 190 mm max., device depth up to 12 mm max. |
| Power supply | Value |
|---|---|
| Battery type | Integrated lithium-ion battery |
| Charging options | USB-C |
| Charging time | approx. 90 min (charging an empty battery for 15 min gives 30 minutes of operation) |
| General technical data | Value |
|---|---|
| Ingress protection rating | IP 54 |
| System requirements | requires iOS 17.0 or newer; requires Android 14.0 or newer; requires a mobile device with Bluetooth 4.0 |
Testo · testo 605i
The compact testo 605i temperature and humidity measuring instrument with bendable probe head features professional measuring technology in an intelligent format: it can be used in conjunction with a smartphone/tablet and the testo Smart App to reliably measure air temperature and humidity in rooms and ducts.
Testo · testo 770-3
Non-contact measurement on tightly packed cables is really easy and reliable with the testo 770-3 clamp meter. Its innovative grab mechanism will make your work easy. The most powerful model in the clamp meter series, it offers lots of additional functions for those challenging tasks that you are faced with on a daily basis, e.g. connection to the testo Smart App and other Testo measuring instruments. Thanks to its increased resolution, the clamp meter delivers highly precise results even in the lower current range.
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.
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.
