Testo 550i Smart Kit Digital Manifold (with 2x 115i Wireless Clamps)

The Testo 550i Smart Kit is a fully app-controlled, 2-valve digital manifold system engineered for modern refrigeration, air conditioning, and heat pump diagnostics. Built with a robust IP54-rated housing, the manifold communicates directly with the Testo Smart App via Bluetooth (up to 150m range) to deliver live pressure and temperature readings to your smartphone or tablet. This kit includes two wireless Testo 115i clamp thermometers, enabling automatic and highly accurate superheat and subcooling calculations on site. The 550i is compatible with A3 and A2L refrigerants (such as R32) and integrates seamlessly with the broader Testo range and Bluetooth Smart Tools collection.

Technical Specifications

Tradie Pro Tip: In the Testo Smart App, set your most frequently used refrigerants (like R32, R410A, or R134a) as Favourites and enable automatic SH/SC calculations. This eliminates manual math errors and speeds up your workflow. To complete a fully wireless diagnostic setup, pair this kit with the Testo 552i Wireless Vacuum Probe for evacuation monitoring.

Related Equipment & Resources

• Testo 115i Clamp Thermometer – Add additional precision pipe temp sensors for multi-circuit systems.
• Refrigerant Scales – Essential for automated charging workflows alongside your digital manifold.
• Testo 550i Official Specs – Review manufacturer documentation and strict A2L handling guidance.