testo 905i – Bluetooth Air Thermometer Smart Probe

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

Click Here to download the testo 905i – Bluetooth Air Thermometer Smart Probe data sheet.

Click Here  to download the Smart Probe Brouchure

Click Here to download the FAQ – Testo Smart Probes

Click Here  to watch the testo Smart Probe video

Click Here to watch the testo facility management system video


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.

Delivery Scope

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

Technical Data
Temperature – TC Type K (NiCr-Ni)
Measuring range: -50 to +150 °C
Accuracy: ±1 °C
Resolution: 0.1 °C

General technical data
Dimensions: 222 x 30 x 24 mm
Operating temperature: -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 AAA micro batteries
Battery life: 150 h
Length probe shaft: 100 mm
Storage temperature: -20 to +60 °C

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