Testo 557 with Bluetooth Without Sight Glass – (0563 1558)

£429.00 £355.00

NEW Testo 557 Set Digital Refrigeration Manifold Kit now with Bluetooth & APP

The Testo 557 digital refrigeration manifold is the ideal tool for servicing and commissioning, refrigeration plant and heat pumps. High performance at an affordable price, easy to use, versatile and uncomplicated, the Testo 557 is an invaluable aid when assessing system performance.

The 557 has built-in impact protection, a robust 4-way valve block with 4 connections and a suspension hook to provide secure attachment of the manifold during testing.

Two temperature inputs allow simultaneous calculation and display of superheating and sub-cooling. At the press of a button, the differential temperatures are also displayed.

There is no longer any need to change the hoses when servicing reversible-cycle air conditioning systems. The 557 automatically switches the display of the high  and low pressure. With the use of two externally connected temperature probes, simultaneous superheating and sub-cooling calculations can be made.


4-way valve block without sight glass.

Superheating and sub-cooling in real-time by means of two external temperature probes (NTC).

Integrated vacuum measurement supports evacuation of the system.

2 temperature probe connections (NTC).

60 refrigerants curves stored on-board.

60 bar pressure rating.

250 hour battery life.

Backlit display.

Timed tightness test.

Fast 30 second set up.

Heat pump mode, automatic switching of Hi/Lo pressure.

Display of Min/Max/Mean and differential temperature.

Testo 557 kit supplied complete with:

Testo 557 digital refrigeration manifold.

Bluetooth for commissioning servicing & maintenance557 - No Sight Glass Case & Probes

2 x pliers pipe clamp probes.

External vacuum probe


Calibration protocol.

User manual.

Transport case.


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