For refrigeration engineers: Compact kit containing testo 549i high-pressure gauge and testo 115i clamp thermometer (two of each). Used in conjunction with your smartphone/tablet, the kit is ideal for servicing, troubleshooting and installing air conditioning and refrigeration systems. The testo Smart App makes your work easier and more efficient: over 90 stored refrigerants, automatic calculation of superheating/subcooling, emailing of measurement data reports as PDF or Excel files.High-precision measurement technology with convenient smartphone operationIn the kit: 2 x testo 115i clamp thermometers, 2 x testo 549i high-pressure gauges, testo Smart Case100 m Bluetooth® range for particularly flexible applicationsApp for creating on-site reportsAutomatic calculation of evaporation and condensation temperatures