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Testo 557s digital manifold with 4-way valve and wireless probes

Testo

Testo 557s Smart Kit Digital Manifold 4-Way Valve 115i Temp Probes (x2)

SKU CH-HK32-FJ826

A digital manifold kit with a four-way valve block, wireless vacuum probe and two temperature clamps for refrigeration and heat-pump commissioning

  • TypeTemperature & Humidity Measurement
  • Commission, service and maintain systems with the 4-way valve block
  • View all results at once on the large graphic display
  • Connect wirelessly to testo Smart probes via Bluetooth
  • Calculate target superheat automatically for faster diagnostics
  • Keep refrigerant listings current with automatic app updates

Testo 557s Digital Manifold Kit

This Testo 557s Smart Kit is a digital manifold set built for HVAC technicians who commission, service and maintain refrigeration systems and heat pumps. The package includes the 557s manifold with a 4-way valve block, a 552i wireless vacuum probe, two 115i wireless temperature probe clamps and a four-piece hose set.

Installation and common issues

The 4-way valve block allows direct connection for multiple tasks without swapping hoses, while Bluetooth connectivity links the probes to the testo Smart App for live readings. Technicians should verify that the refrigerant database in the App is current before starting a job, as outdated listings can lead to incorrect superheat calculations.

Who this suits and who should look elsewhere

Suits professionals who need wireless temperature and vacuum measurement combined with on-screen target superheat calculation during system commissioning. Not suited for users who require built-in data logging without a mobile device, or for applications demanding more than two temperature probe inputs simultaneously.

Highlights

  • Commission, service and maintain systems with the 4-way valve block
  • View all results at once on the large graphic display
  • Connect wirelessly to testo Smart probes via Bluetooth
  • Calculate target superheat automatically for faster diagnostics
  • Keep refrigerant listings current with automatic app updates

Specifications

TypeTemperature & Humidity Measurement

Questions about this item

How do I confirm the 557s manifold is reading pressure and temperature correctly after pairing the 115i clamps?

The large graphic display shows all live results at once; watch the analog-look pressure gauges and the calculated target superheat update in real time as the two 115i clamps transmit pipe temperatures.

What components are included in the 557s Smart Kit and what extra items might be needed?

The kit contains the 557s digital manifold with 4-way valve block, a 552i wireless vacuum probe, two 115i wireless temperature probe clamps, and a four-piece hose set.

Which Testo 557s configuration should I choose for heat-pump commissioning and servicing?

Part number 0564 5572 01 is the complete Smart Kit with 4-way valve, 552i vacuum probe, two 115i clamps and hose set, covering commissioning, servicing and maintenance of refrigeration systems and heat pumps.

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