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Testo 550-3 Digital Manifold Kit with Hoses

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Digital manifold kit including hoses and temperature clamps allowing users to fully service refrigeration systems and heat pumps.

rrp £393.00

now £349.00 (Ex. VAT) £418.80 (Inc. VAT)

rrp £393.00

**Please Note: This product has been superseded by the Testo 550 Digital Refrigeration Manifold Set.**

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"Service Air-Con, Refrigeration and Heat Pump Systems"

  • Description

    Testo 550-3 Digital Refrigeration Manifold Kit

    **Please Note: This product has been superseded by the Testo 550 Digital Refrigeration Manifold Set.**

    The Testo 550-3 Digital Refrigeration Manifold Kit enables users to perform a range of measurements including pressure, vacuum and temperature using just this one instrument, saving time and improving accuracy. The Testo 550-3 Kit is supplied complete with two pliers probes for temperature measurements and a rugged transport case with space for your 550 digital manifold and accessories. In addition, this kit comes with 3 refrigerant hoses and 2 evacuation hoses, equipping HVAC service engineers with everything needed to test and evacuate refrigeration systems.

    The Testo 550 Digital Refrigerant Manifold is ideal for the service, maintenance and commissioning of air conditioning systems, heat pumps and refrigeration units, allowing users to quickly charge and service these systems.

    Testo 550-3 Kit Features

    • Calculation of superheating/subcooling in real time
    • 2-way valve block with three connections, three hose holders and sight glass
    • The 39 most common refrigerants are stored in the instrument
    • Display illumination for better legibility in dark surroundings
    • Automatic heat pump mode
    • Temperature-compensated tightness test

    The automatic heat pump mode means the hoses no longer need to be switched over, while the temperature compensated tightness test and real-time calculations of superheating and sub-cooling mean the Testo 550 refrigeration system analyser makes short work of refrigeration system and heat pump maintenance.

    Using the Testo 550-3 Digital Refrigeration Kit, multiple tests can be performed and calculated in a short space of time. Service engineers can perform a leak test, monitor refrigerant flow through the integrated sight glass and watch as superheating and subcooling are displayed in real-time. At the touch of a button you can quickly switch between different measurements, with a large backlit display that clearly displays all the test values required to assess the performance and efficiency of the system.

    Testo Part Number: 300563 5503

  • Specification


    • Measurement Range: -1 - 40 bar
    • Overload: 60 bar
    • Accuracy: ±0.75% fs (±1 digit)
    • Resolution: 0.01 bar
    • Connection Pins: 3x7/16“ – UNF


    • Measuring Range: -50 to 150°C
    • Accuracy: 0.5°C (±1 digit)
    • Resolution: 0.1°C
    • Probe Connections: 2 x plug-in (NTC)


    • Measuring Range rel: -1 bar to 0 bar

    Refrigerants in Instrument


    R718 (H2O)

  • Supplied Accessories

    • Testo 550 Digital Manifold
    • 2 x Clamp Probe
    • 3 x Refrigerant Hoses
    • 2 x Evacuation Hoses
    • Batteries
    • Testo 550 Instruction Manual
    • Calibration Protocol
    • Hard Transport Case
  • Product Documents

    Product Attachments

    View FileTesto Refrigeration Brochure    Size: (6.54 MB)
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  • Delivery Information

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    We use DPD/Interlink for all larger items and Royal Mail for smaller items and accessories. With DPD/Interlink you will receive a 1 hour delivery window on the day of delivery via e-mail/text and a notification 15 minutes before arrival so you will not have to wait around all day. You can even manage your booking online and re-arrange delivery for another date or arrange the goods to be left with a neighbour of your choice.

    We also offer delivery options for goods required urgently on certain products, all which are sent by DPD/Interlink.

    Our charges for UK deliveries:

    • FREE Delivery (on select products only): typically 3-5 working days*
    • Standard Delivery at £4.95: 2-3 working days
    • Next Working Day Delivery (on select products only) at £7.50
    • Pre-Noon Next Working Day Delivery (on select products only) at £9.50*
    • Pre-10.30am Next Working Day Delivery (on select products only) at £18.50*
    • Saturday Pre-Noon Delivery (on select products only) at £14.50*
    • Sunday Pre-Noon Delivery (on select products only) at £14.50*

    *UK mainland only

    NOTE! For next working day or Saturday/Sunday delivery options the order MUST be placed no later than 3pm on the working day before delivery is required. After 3pm, please arrange with our staff before selecting a priority delivery service. Priority services are available to UK mainland residents only (this might exclude certain areas in the north of Scotland).

    Customers outside the UK:

    Test-Meter.co.uk exports to many countries all over the world. Prices for shipping vary on location and weight/dimensions. Costs are calculated for certain countries at the checkout. If your country is not included in this list please e-mail admin@test-meter.co.uk with your name, address and the items you would like to order for an accurate shipping quote or go to http://www.test-meter.co.uk/test-equipment-export for more information.

    For more information on delivery, please see our terms and conditions.