Temperature measurements at widely spaced measuring points in particular, the Testo 115i makes things much easier – thanks to a wireless connection to the smartphone or tablet. Measurement data is transmitted wirelessly from the clamp thermometer to the Testo Smart Probes App and can be viewed conveniently on your smartphone or tablet – either as a chart or in table form. Temperature changes are therefore immediately evident. The measurement data log can be emailed directly as a PDF or Excel file. This saves you time, allowing you to further increase your efficiency.
System requirements: 

iOS 8.3 or later

Android 4.3 or later

Bluetooth 4.0

Temperature measurements at widely spaced measuring points in particular, the Testo 115i makes things much easier – thanks to a wireless connection to the smartphone or tablet. Measurement data is transmitted wirelessly from the clamp thermometer to the Testo Smart Probes App and can be viewed conveniently on your smartphone or tablet – either as a chart or in table form. Temperature changes are therefore immediately evident. The measurement data log can be emailed directly as a PDF or Excel file. This saves you time, allowing you to further increase your efficiency.
System requirements: 

iOS 8.3 or later

Android 4.3 or later

Bluetooth 4.0