Testo 557 Digital Refrigeration Gauges with Vacuum & Bluetooth

The Testo 557 is an easy to-use, high quality four valve digital HVAC manifold. A new feature of the Testo 557 is an external probe, capable of performing highly precise vacuum measurements. The Testo 557 is also capable of performing superheat and subcooling measurements at the same time with the two supplied NTC temperature inputs.

Another added feature is the app integration via Bluetooth connectivity. This provides the user the ability to read off measurement data on smartphone or tablet as well as finalizing and sending measurement reports on site. The Testo 557 also comes pre-loaded with 60 refrigerant profiles, which can be updated using the Bluetooth application, and features an easy to read, backlit display.

The Testo 557 is ideal for servicing, maintaining and commissioning all types of air conditioning systems and is supplied in a robust housing with 2 clamp probes, an external vacuum probe, batteries, case and calibration certificate.

Features:

Four ports, including oversize charging and evacuation port

Vacuum measurements using external probe

Bluetooth for connection to smartphones with app allowing measurement reports to be sent from site

60 refrigerant profiles

Superheat and subcooling measurement simultaneously

Works with R32 and new generation refrigerants

Up to 3 years warranty (on product registration)

Supplied complete and ready to use in hard case