Testo 905 i - Thermometer with smartphone operation

Special Price 7111.11

Regular Price: 9298.00


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.

Product Description

General Specifications

Units: ° C
Compatability: Requires iOS 8.3 or newer /Android 4.3 or newer
Requires mobile end device with Bluetooth 4.0
Storage temperature: -20 to +60 °C
Operating temperature: -20 to +50 °C
Battery type: 3 micro batteries AAA
Battery life: 250 hrs
Dimentions: 222 x 30 x 24 mm, probe shaft length : 100 mm 
Warranty 2 Years

Instrument Specifications

Measuring range: -50 to +150 °C
Accuracy: ±1 °C
Resolution: 0.1° C

General technical data


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


2 years

Battery type

3 AAA micro batteries

Battery life

250 h

Storage temperature

-20 to +60 °C

Length probe shaft

100 mm

Temperature - TC Type K (NiCr-Ni)

Measuring range

-50 to +150 °C


±1 °C


0.1 °C

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