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Testo 550s manifold gauge set with two 115i clamp thermometers

Testo

Testo 550s AC Manifold Gauge Set with 2x 115i Clamp Thermometers

SKU CH-TQ5Z-1Y919

HVAC manifold gauge set measures pressure to 870 psi and temperature from -58 °F to 302 °F with wireless probes and Bluetooth app for superheat and subcooling calculations

Size Temperature Kit

  • Precise temperature readings within ±0.9 °F for accurate diagnostics
  • Wide pressure range from -15 to 870 psi covers diverse HVAC applications
  • Two wireless clamp thermometers enable simultaneous pipe temperature measurement
  • Automatic superheat and subcooling calculations via the smart app
  • Supports common refrigerants plus A2L types for modern system compatibility

HVAC Manifold Gauge Set

The Testo 550s AC manifold gauge set is built for HVAC and refrigeration technicians who need precise temperature and pressure data on air conditioning systems and heat pumps. It ships with two wireless 115i pipe clamp thermometers and one wireless vacuum probe for complete system analysis.

Wide Range Temperature and Pressure

The gauge measures temperature from -58° to 302 °F / -50 to +150 °C with an accuracy of ±0.9 °F / ±0.5 °C and pressure from -15 to 870 psi / -1 to 60 bar with ±0.5 % full-scale accuracy. Bluetooth connectivity sends readings to a smartphone or tablet for remote monitoring.

Wireless Probe Kit for System Diagnostics

The included 2x 115i clamp thermometers and vacuum probe eliminate cable clutter during service and maintenance tasks. The testo Smart App calculates superheat and subcooling automatically and supports most common refrigerant types including A2L refrigerants for on-site documentation.

Highlights

  • Precise temperature readings within ±0.9 °F for accurate diagnostics
  • Wide pressure range from -15 to 870 psi covers diverse HVAC applications
  • Two wireless clamp thermometers enable simultaneous pipe temperature measurement
  • Automatic superheat and subcooling calculations via the smart app
  • Supports common refrigerants plus A2L types for modern system compatibility

Specifications

No published specifications for this item yet.

Other versions of this model

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Questions about this item

How do I pair the two 115i clamp thermometers with the 550s manifold using the smart app?

Turn on the manifold, open the testo smart app on your smartphone or tablet, and follow the on-screen pairing steps for each wireless temperature probe.

What maintenance will the wireless vacuum probe and clamp thermometers require over time?

Replace the batteries in each wireless probe when the app indicates low power, and keep the clamp surfaces clean for accurate pipe contact.

At what pressure does the manifold reach its measurement limit during a long recharge session?

The pressure measuring range tops out at 870 psi or 60 bar, so sustained readings above that level cannot be captured.

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