Testo 905i Thermometer (Bluetooth)


Testo Approved distributor and service company.

The Testo 905i is a compact thermometer operated with your smartphone as is part of the Testo Smart Probe range.

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0560 1905


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£ 53.10 rrp £ 59.00

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(£ 63.72 inc VAT.)

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The compact thermometer testo 905i, in combination with a smartphone or tablet, is suitable for the measurement of ambient temperature as well as the temperature in ducts and air outlets. Users can read off their measurement values comfortably in the testo Smart Probes App installed on the end device.

All measurement data are presented either as a diagram or in tabular form, can be made into a report and then transmitted as PDF or Excel files.


Compact professional measuring instrument from the Testo Smart Probes series, for use with smartphones/tablets.
Measurement of temperature in rooms, ducts and at air outlets.
Fast identification of temperature changes by graph curve display.
Measurement data analyzed and sent via testo Smart Probes App.
Space-saving and easy to transport.

Testo 905i Smart Probe Specifications:

  • Sensor type: Type K (NiCr-Ni).
  • Measuring range: -50 to +150 °C.
  • Accuracy ±1 digit: ±1 °C.
  • Resolution: 0.1 °C.
  • Operating temperature: -20 to +50 °C.
  • Compatability: requires iOS 8.3 or newer / Android 4.3 or newer.
  • Requires mobile end device with Bluetooth 4.0.
  • Dimensions: 222 x 30 x 24 mm, 100 mm probe shaft.
  • Testo 905i Warranty: 2 years.


Includes: Smart Probe Testo 905i, batteries and calibration protocol.

About The Testo Smart Probes App

The App turns your smartphone/tablet into the display of up to 6 Testo Smart Probes at the same time. The operation of the measuring instruments as well as the display of the measurement values take place by Bluetooth via the Testo Smart Probes App on your smartphone or tablet – independently of the measurement location. In addition to this, you can use the App to create measurement reports, add photos and comments to these, and send them by e-mail. The Testo Smart Probes App is completely free and is available for iOS from the App Store and Android via Google Play.

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Testo 905i Thermometer (Bluetooth)