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Testo
550i Digital Manifold (2-Way Valve Block; with Sightglass)


Testo 550i Digital Manifold (App Controlled) is designed for commissioning, servicing & maintenance of refrigeration systems, air conditioning systems & heat pumps.

Part Number:
0564 2550

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Manufacturer's RRP

£165.00
198.00 incl. VAT)
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  • Competitive quote
  • Expert technical advice/demos
  • Trusted aftercare support

 

 

FREE 9PC Spanner Set

FREE 9PC Spanner Set

Get a Testo 550i Digital Manifold or Kit – Score a FREE 9-Piece Testo Spanner Set!

 

Testo 550i Digital Manifold with 2-Way Valve Block

Testo 550i is equipped with a 2-way valve block, a robust hook and Bluetooth capability! Complete with Testo Smart App to give engineers the ability to control their daily servicing and maintenance work via their smart phone or tablet.

Testo 550i is compact instrument designed with the most essential features to automatically connect via the Testo Smart App to various Bluetooth probes for temperature, pressure and humidity, thus ensuring maximum flexibility for wireless working. Its proven quality and great durability guarantees continuously high performance.

  • Testo 550i is a compact, app-controlled digital manifold for HVAC/R work.
  • Comes with a 2-way valve block and a strong hook for easy mounting.
  • Controlled via Bluetooth using the Testo Smart App on your smartphone or tablet.
  • Designed for refrigeration systems, air conditioning, and heat pumps.
  • Offers fast, accurate, and reliable measurements.
  • Small size and wireless design make it great for tight spaces and tough environments.
  • Built with IP54-rated housing for durability on demanding job sites.
  • Auto Bluetooth pairing with Testo Smart Probes to the below 4 measurements:
  1. Temperature
  2. Pressure
  3. Humidity
  4. Vacuum
  • The app shows clear readings and does automatic refrigerant-specific calculations (evaporation and condensation temps).
  • Helps make accurate diagnostics and system assessments easier and faster

 

The App-Controlled Testo 550i Digital Manifold is now available with SightGlass!

App connectivity with the Testo 550! Manifold

 

 

Testo 550i Key Features:

  • Designed for use on refrigeration systems, air conditioning systems and heat pumps
  • Fast and easy measurements
  • Clearly presented results and digital documentation
  • All activities, from measurement through to documentation, using the App on your Smartphone
  • The smallest digital manifold on the market Maximum reliability thanks to the extremely robust housing with IP54 protection class
  • Automatic refrigerant-specific calculation of evaporation and condensation temperature in the App
  • Optionally expandable with testo Smart Probes for temperature, humidity and vacuum
  • Convenient refrigerant management in the App with favourites and automatic updates
  • Can be used for applications with A2L refrigerant, taking into account the relevant legislation, norms and guidelines for refrigeration systems

 

 

Testo Smart App Key Features:

  • For all applications of the testo 550i - from measurement to documentation
  • Compatible with all Bluetooth-enabled Testo measuring instruments for air conditioning/refrigeration systems and heat pumps
  • Measurement errors are easily prevented thanks to menus that offer optimum support, e.g. for superheating and subcooling
  • Quick analysis thanks to clear presentation of the values, e.g. in a table
  • Create digital measurement reports including photos as PDF/CSV files on site and email them straight away

 

 

Video: Testo 550i, the most compact manifold in the world...

Thumbnail for the Testo 550i video

 

Video: Testo Smart Probes give HVAC pros the ultimate wireless tools for fast, accurate diagnostics

Unlock precision and power on the go perfect for fast, accurate diagnostics and effortless reporting, right from your smartphone:

Thumbnail for theTesto 550i video

 

 

The various models of the Testo 550i:

  • (0564 2550 02) Testo 550i Manifold ONLY
  • (0564 2550) Testo 550i Digital Manifold (+Sightglass)
  • (0564 3550 02) Testo 550 Digital Manifold Smart Kit
  • (0564 3550) Testo 550i Digital Manifold Smart Kit (+Sightglass)
  • (300564 3550 02) Testo 550i - Digital Manifold Heat Pump Kit
  • (300564 3550 03) Testo 550i - Digital Manifold Heat Pump Kit (+Sightglass)

 

 

What comes with the Testo 550i (0564 2550 02)?

Testo 550i Digital Manifold

  • Testo 550i Digital 2-Way Manifold
  • Batteries (3 x AAA)
  • Calibration Protocol
  • Instruction Manual
  • Testo Smart App (free download)

 

 

What extra comes with the Smart Kit (0564 3550 02)?

Testo 550i Digital Manifold - Smart Kit

Extra to the standard model:

  • 2 x Testo 115i Wireless Bluetooth Pipe Clamp Thermometers
  • Carry Case

 

 

What extra comes with the Heat Pump Kit (300564 3550 02)?

Testo 550i Digital Manifold - Heat Pump Kit

Extra to the standard model:

  • 2 x Testo 115i Wireless Bluetooth Pipe Clamp Thermometers
  • 1 x Testo 770-3 Clamp Meter
  • Carry Case

 

 

What is Testo SightGlass?

The term "Testo Sightglass" refers to the integrated sight glass feature found in certain Testo Digital Manifold gauges. This component allows HVAC/R technicians to visually monitor the flow of refrigerant within a system, aiding in diagnostics and system assessments.

SightGlass for Testo 550i Manifold

0564 2550 / 0564 3550 / 300564 3550 03

 

 

Whether you‘re servicing commercial refrigeration units or domestic HVAC systems, the Testo 550i digital manifold offers the ultimate solution for fast measurements, wireless diagnostics and professional digital reporting — all from the convenience of your smartphone or tablet. Elevate your workflow and experience cutting-edge HVAC technology with the Testo 550i.

 

Comparison Chart for: Testo 550i Digital Manifold (2-Way Valve Block; with Sightglass)

Contents550iSmart Kit
Testo 550i App-Controlled Manifold
Calibration protocol
Testo 115i Wireless clamp temperature probe2
Instrument case

 

 

 

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