Description
The Testo 0564 3550 01 is an app-controlled digital manifold kit designed for comprehensive refrigeration and air conditioning system diagnostics. Built with Original Engineering standards, this 550i Smart Kit integrates a robust 2-way valve block with wireless Bluetooth connectivity, eliminating the need for traditional wired manifolds. The kit includes two Testo 115i wireless pipe clamp temperature probes, enabling real-time calculation of superheating and subcooling directly through the Testo Smart App.
Technical Specifications – Testo 550i Manifold
Pressure Measuring Range: -1 to 60 bar
Pressure Accuracy: ±0.5% full scale
Pressure Resolution: 0.01 bar
Overload Pressure: 65 bar
Port Connections: 2 x 7/16 inch UNF
Operating Temperature: -10 °C to +50 °C
Protection Class: IP54
Battery Life: 130 hours
Communication: Bluetooth 5.0
Refrigerant Database: 90+ profiles via App integration
Weight: 595 g
Technical Specifications – Testo 115i Temperature Probes
Temperature Measuring Range: -40 °C to +150 °C
Temperature Accuracy: ±1.3 °C
Temperature Resolution: 0.1 °C
Compatible Pipe Diameter: Ø 6 mm to 35 mm
Battery Life: 150 hours
Weight: 127 g per probe
Industrial Application & Value
This diagnostic kit is engineered for HVAC/R technicians managing commercial refrigeration units, heat pumps, and complex air conditioning architectures. The Technical Compatibility of the 550i extends to over 90 standard refrigerants, allowing seamless integration into diverse maintenance workflows. By utilizing wireless probes, technicians can monitor pressure and temperature differentials across expansive industrial setups without cable interference. Contact our procurement team to verify current Lead Time and secure this critical diagnostic asset.
Key Attributes
Place of origin: Germany
Brand name: Testo
Customized support: OEM, ODM
Warranty: 1 years
Model number: 550i
Product name: Testo
Model: 550i
Measuring Range: -14 to 870 psi
Accuracy (at 72°F): ±0.5% fs
Resolution: 0.1 psi
Overload: 940 psi
Operating Temperature: 14 to 122°F (-10 to 50°C)
Battery Type: 3 x AAA batteries
Protection Class: IP54
Packaging and Delivery
Selling Units: Single item
Single package size: 45X28X16 cm
Single gross weight: 3.200 kg











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