The kit contains two testo 549i high-pressure gauges, two testo 605i thermohygrometers and two testo 115i clamp thermometers. Used in conjunction with your smartphone/tablet, the kit is ideal for servicing, troubleshooting and installing air conditioning and refrigeration systems. The testo Smart Probes App makes your work easier and more efficient: over 90 stored refrigerants, automatic calculation of superheating/subcooling, target superheat and cooling/heating load, emailing of measurement data reports as PDF or Excel files.

• Measure high-side & low-side refrigerant pressure & temperatures (simultaneously) of AC/refrigeration systems
• Testo 549i now includes 45° angled hose connections
• Testo 605i now includes 90° foldable probe
• Calculate superheat and subcooling in the Smart Probe App
• Measurement data is transmitted to the convenient and powerful testo Smart Probes App in your smart device
• HVAC softcase holds the complete set of smart probes
• 350 ft. Bluetooth® Range