Professional measuring technology is now mobile: when it comes to measuring temperature at widely spaced measuring points in particular, the testo;115i makes things a lot easier, thanks to wireless connection to your smartphone or tablet. When used in conjunction with the testo 549i pressure measuring instrument, individual refrigeration system parameters can also be calculated. Measurement data is transmitted wirelessly from the clamp thermometer to the testo Smart 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. Finally, the measurement data report can be e-mailed directly as a pdf or Excel file. This saves you time, allowing you to further increase your efficiency. Convenient temperature measurement on refrigeration, air conditioning and heating systems thanks to wireless connection to your smartphone or tablet. Fast identification of temperature changes by graphic progression display. Measurement data analyzed and sent via testo Smart App. Problem-free application at measuring points that are a long distance apart thanks to Bluetooth range up to 100 m.