It offers precise temperature measurement with the convenience of smartphone operation via Bluetooth®. Its clamp design allows easy attachment to pipelines with diameters from 6 to 35 mm, making it ideal for HVAC and industrial temperature monitoring within a wide range from 40 to 150 °C. Quick and easy transmission of measurement data to smartphones or tablets is possible via the free Testo Smart App, where values can be read, temperature curves displayed graphically or in tabular form, and result protocols sent as PDF or Excel files.