Round 1

...is a clear win for Testo 550:

Large figures and a backlit display allow fast readout, even in the dark. At the same time, two pressure sensors measure high and low pressure quickly and precisely, and calculate the temperatures. The exchange of refrigerant hoses for measurements on reversible cycle air conditioning systems is no longer necessary. By activating the heat pump mode, the instrument automatically switches over.
 

Feature of Testo 550: Just switch on, measure and read off – for example in your next service on a heat pump!

Round 2

... Testo 550 shows no weakness:

Two temperature inputs guarantee the simultaneous calculation and display of superheating and subcooling. With the clamp probe included in delivery, you can measure the surface temperature of pipes quickly and accurately.
 

Feature of Testo 550: Saves precious time and measures both temperatures simultaneously – for example when you next service your air conditioning system!

Round 3

... Testo 550 is clearly on top:

The vacuum display supports you in evacuating the system. By measuring the system pressure as well as the ambient temperature, the digitial manifold supports you in evaluating whether the system is tight!
 

Feature of Testo 550: Allows you to carry out commissioning work reliably!

Round 4

... goes clearly to Testo 550 again:

The robust housing and the 2-way metal valve block with three connections guarantee you are always ready to go. The suspension hook ensures secure attachment during measurement.
 

Feature of Testo 550: Just made for tough applications!

Round 5

... the final round for Testo 550:

Intuitive operation guarantees immediate familiarity with the manifold. Refrigerant flow can be monitored through a sight glass. The refrigerant hoses are securely attached to the practical hose holders on the valve block. Two direct buttons offer you two further advantages – one for the display of MIN/MAX/MEAN, and the other for instant access to 31 selectable refrigerants.
 

Feature of Testo 550: More than just convenience for the user – a good decision, from the very beginning! A measuring instrument for winners.

Testo 550 measures high and low pressure quickly and precisely, and automatically calculates the temperatures.

There is no longer any need to change the hoses when servicing reversible-cycle air conditioning systems! The digital manifold Testo 550 automatically switches over the display of the high and low pressure.

> Order set testo 550-1

Testo 550 informs you of the vacuum reached when evacuating a system. In addition to this, tightness tests on systems can be carried out with this new manifold.

By measuring the system pressure and the ambient temperature over a defined period, you can make a statement on the tightness of a system. This allows you to carry out additional commissioning work reliably with the Testo 550.

> Order set testo 550-1

Thanks to two externally connectable temperature probes, the Testo 550 simultaneously calculates superheating and subcooling. For example, using the clamp probe for temperature measurements on pipes.
 

This is included in delivery. It is simply clamped on to the pipe, and quickly records the surface temperature. You save precious time, because you conveniently measure both temperatures simultaneously!

> Order set testo 550-2

Set Testo 550-2 with price advantage
(picture is similar)

• Digital manifold Testo 550
• Clamp probe for temperature measurements on pipes
• Transport case with space for Testo 550, probes and hoses
• Calibration protocol and batteries

Order no. 0563 5506

£299.00

> Order set testo 550-2

Precise, robust air probe, NTC

• Measuring range: -50... +125°C

Order no. 0613 1712

£52.00

> Order air probe now!

Transport case
(picture is similar)  

• with space for Testo 550, probes and hoses

Order no. 0516 5505

£69.00

>Order transport case now!