Protection class | IP54 |
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System requirements | requires iOS 17 or newer; requires Android 14 or newer; requires mobile end device with Bluetooth 4.0 |
Field of view | 48° x 36° |
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Focus | Fixed focus |
Minimum focus distance | 0.3 m |
Image refresh rate | 9 Hz |
Infrared resolution | 256 x 192 pixels |
Thermal sensitivity | 50 mk |
Spectral range | 8 to 14 µm |
Minimum focus distance | 0.4 m |
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Image size | 640 x 480 pixels |
Colours | iron, rainbow, rainbow HC, cold-hot, blue-red, grey, inverted grey, sepia, Testo, iron HAT, humidity palette |
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Digital zoom | yes |
Display option | IR image / real image |
(in the testo Smart App) |
Accuracy | ±3 °C or ±3 % of m.v. (at ambient temperature of -10... +40 °C and scene temperature of 0... +150 °C or +100... +350 °C) |
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Emissivity | 0.01 to 1 |
Measuring range | -20 to +350 °C |
Reflected temperature | manual; (via testo Smart App) |
Analysis function | Hot/cold spots, Delta T, up to 10 selectable individual measuring points, area measurement (min./max. on area) |
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Electrical mode - manual | Input of current, voltage or power |
Humidity mode - manual | yes |
Humidity measurement with humidity measuring instrument | Automatic transfer of the optional testo 605i or testo 625 thermohygrometer readings via Bluetooth to the testo Smart App |
Electrical measurement with clamp meter | Automatic reading transfer of the optional testo 770-3 clamp meter via Bluetooth to the testo Smart App |
Application-specific measurement functions | DeltaHeat; DeltaCool; humidity mode |
(in the testo Smart App) |
Full screen mode | yes |
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WLAN Connectivity | Communication with the testo Smart App; WLAN: IEEE 802.11b/g/n* |
Bluetooth | Peer-to-peer advertising for fast connection set-up* |
Remote-controlled operation | Up to 10 m from the mobile device (via WLAN) |
* An overview of the radio authorisations in the different countries can be found in the download section of the testo 860i product page in the "Quick Start Guide testo 860i" document. |
File format image | .bmt; .jpg; .csv |
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Storage device | On a mobile device |
Battery type | Integrated Li-ion rechargeable battery |
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Charging options | USB-C |
Charging time | Approx. 90 min (15-min charge of an empty battery equals 30 min of operating time) |
Air humidity | 5 to 95 %RH, non-condensing |
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Vibration | IEC 60068-2-6 |
Impact resistance test | 1.5 m |
Storage temperature | -20 to +70 °C |
Operating temperature | -10 to +50 °C |
Tripod mounting | 1/4" - 20UNC |
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Mobile device attachment | Clip span: min. 120 mm, max. 170 mm and device depth up to max. 12 mm |
Weight | 195 g |
Dimensions | 165 x 45 x 38 mm |
System requirements | Windows® 10; Windows® 11 |
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(testo IRSoft) |
Measuring range | -20 to +60 °C |
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Accuracy | ±0.8 °C (-20 to 0 °C) ±0.5 °C (0 to +60 °C) |
Resolution | 0.1 °C |
Measuring range | 0 to 100 %RH |
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Accuracy | Hysteresis: ±1.0 %RH ±2.0 %RH (35 to 65 %RH) (at +25°C) long-term stability: ±1 %RH / year ±5 %RH (< 10 %RH or > 90 %RH) ±3.0 %RH (65 to 90 %RH) (at +25°C) ±3.0 %RH (10 to 35 %RH) (at +25°C) |
Resolution | 0.1 %RH |
Weight | 86.4 g |
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Dimensions | 218 x 30 x 27 mm |
Operating temperature | -20 to +50 °C |
Product-/housing material | Plastic |
System requirements | requires iOS 13.0 or newer; requires Android 8.0 or newer; requires mobile end device with Bluetooth 4.2 |
Product colour | black/orange |
Battery life | 150 h |
Battery type | 3 AAA micro batteries |
Length probe shaft | 100 mm |
Data transfer | Bluetooth® |
Radio range | 100 |
Storage temperature | -20 to +60 °C |
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