Testo 905i Smart Probe Thermometer - DISCONTINUED

0560 1905

Key Features:

This Product is DISCONTINUED

  • Quickly and accurately measure air temperature in rooms, ducts, registers, and outlets
  • Fast acting temperature probe quickly tracks changes, and shows trends on a graphic display
  • Measurement data is transmitted to the convenient and powerful testo Smart Probes app on your smart device
  • Tough, accurate, and easy to use
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The Testo 905i is an air temperature thermometer that quickly and accurately measures temperature in rooms, ducts, registers, and environmental boxes and chambers.


Bluetooth & App Logo

The Testo 905i works with an App and Bluetooth so you can read it out on a smart phone or tablet. The Testo Smart Probes App allows users to remotely read measurements from up to six (6) Smart Probes, and easily document and report the results. The app also features automatic calculations.

Temperature - Type K TC

Measuring range

-58° to 302 °F / -50 to +150 °C


±2 °F / ±1 °C


0.1 °F / 0.1 °C

General technical data


9 x 1 x 1 in. / 222 x 30 x 24 mm

Operating temperature

-4° to 122 °F / -20 to +50 °C

System requirements

requires iOS 8.3 or newer; requires Android 4.3 or newer; requires mobile end device with Bluetooth 4.0

Battery type

3 x AAA

Battery life

150 h

Length probe shaft

3.937 in. / 100 mm

Storage temperature

-4° to 140 °F / -20 to +60 °C

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