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Handheld digital manifold with two valve handles and wired probes

Testo

Testo 550s Basic Kit Digital Manifold 2 Way Valve Wired Temperature Probes

SKU CH-4DEY-SWN1B

Digital manifold measures pressure and temperature for refrigeration and heat-pump servicing with a 2-way valve block, graphic display, Bluetooth connectivity and automatic refrigerant updates via app

  • Product typeTemperature & Humidity Measurement
  • Digital manifold simplifies refrigeration servicing with 2-way valve block
  • Large graphic display shows all results at a glance
  • Bluetooth connectivity enables testo Smart probes use
  • Integrated calculation provides target superheat automatically
  • Refrigerant listing updates automatically via the App

Digital Manifold for Refrigeration Systems

The Testo 550s Basic Kit is a digital manifold designed for commissioning, servicing, and maintaining refrigeration systems and heat pumps. It features a 2-way valve block and wired temperature probes for direct measurements. A large graphic display presents all results at a glance for HVAC technicians.

Bluetooth Connectivity and App Updates

Bluetooth connectivity enables the use of testo Smart probes to extend measurement capabilities. The refrigerant listing updates automatically using the App, ensuring current data is available. Integrated calculation of target superheat supports faster on-site analysis and diagnostics.

Suited for HVAC Service Work

This kit suits HVAC professionals who need a dedicated 2-way digital manifold with wired probes for refrigeration and heat pump tasks. Buyers requiring additional valve ways or wireless probe configurations should look at other configurations.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $436.99
Pricier than about 90% of the 3,030 comparable items (median $54.99).

Specifications

Product
Product typeTemperature & Humidity Measurement

Questions about this item

How often do the wired temperature probes need calibration or replacement?

The wired temperature probes are built for routine commissioning and service work; follow the manufacturer's calibration schedule for the specific refrigerants you handle.

Which measurement limit is reached first during continuous pressure logging?

The 2-way valve block and graphic display are designed for sustained use on refrigeration systems and heat pumps without a stated duty-cycle limit.

Does the manifold generate noticeable heat or noise when left running all day?

The unit operates silently with no moving parts; the display and Bluetooth link draw minimal power so heat build-up is negligible during extended sessions.

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