testo 905i - Bluetooth Air Thermometer Smart Probe

  • Rapid detection of temperature change via graphical progress display
  • Measuring range -50 to +150 °C
  • Measurement data analysed and sent via testo Smart Probes App

Check ambient temperatures and temperatures in ducts and at air outlets quickly, easily and professionally: with the testo 905i thermometer, which is optimized for your smartphone, nothing could be simpler.

testo 0560 1905

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The compact testo 905i professional thermometer, in conjunction with a smartphone or tablet, is ideal for measuring ambient temperature as well as temperatures in ducts and at air outlets.

Instant overview of all temperature changes

The innovative Testo measuring technology can be connected to your own smartphone or tablet really easily: with the testo Smart Probes App installed on your terminal device, you can view your readings conveniently. All measurement data is displayed either as a chart or in table form, and can be logged and then emailed directly as a PDF or Excel file.


testo 905i thermometer with smartphone operation, including batteries and calibration protocol.

Temperature - TC Type K (NiCr-Ni)
Measuring range
-50 to +150 °C
±1 °C
0.1 °C
General technical data
82.2 g
222 x 30 x 24 mm
Operating temperature
-20 to +50 °C
Product-/housing material
System requirements
requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0
Product colour
Battery type
3 AAA micro batteries
Battery life
150 h
Length probe shaft
100 mm
Storage temperature
-20 to +60 °C

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