Testo 552i Wireless Vacuum Probe — 0 to 20,000 Micron | SKU: 0564 2552
The Testo 552i is a wireless vacuum probe from the Testo Smart Probes range, designed for measuring vacuum pressure during refrigerant system evacuation. It connects automatically via Bluetooth to the testo Smart Probes App and compatible Testo digital manifolds, allowing you to monitor vacuum levels remotely — without standing at the vacuum pump — and view graphical vacuum progress on your smartphone or manifold screen.
With a measuring range of 0 to 20,000 microns, IP54 protection, and an integrated 45° angle for easy service port installation, the 552i is suited to HVAC/R technicians who need accurate, wireless vacuum measurement during system evacuation on residential and commercial AC and refrigeration systems.
Important: System evacuation and refrigerant handling requires appropriate trade qualifications. Confirm licensing and compliance requirements with the relevant authority in your state or territory before undertaking refrigerant work.
Confirm current testo Smart Probes App and digital manifold compatibility before ordering. Confirm all specifications against the Testo 552i datasheet.
Key Features
- Measuring range: 0 to 20,000 microns (0 to 26.66 mbar)
- Wireless Bluetooth — connects automatically to testo Smart Probes App and compatible Testo digital manifolds
- Graphical vacuum display in the app or on the digital manifold screen
- Integrated 45° angle for easy installation at any service port
- IP54 protection — compact, robust housing for field use
- Battery: 3 x AAA (confirm battery life against datasheet)
- Operating temperature: -10°C to +50°C
- Storage temperature: -20°C to +50°C
Why Use a Wireless Vacuum Probe?
Measuring vacuum at the manifold can give a misleadingly optimistic reading — the manifold hoses and valves may show a lower micron level than the system itself has achieved. Placing the 552i at or near the system service port gives a more accurate reading of the actual vacuum level in the system. The wireless connection means you can monitor vacuum progress from your smartphone without standing at the pump — improving both accuracy and safety on the job.
Best For
- HVAC/R technicians monitoring vacuum levels during system evacuation
- Technicians who want to confirm a true deep vacuum before releasing a system
- Residential and commercial AC and refrigeration system evacuation and commissioning
- Technicians using Testo digital manifolds who want wireless vacuum integration
Check Before Ordering
- Confirm testo Smart Probes App and digital manifold compatibility before ordering
- Confirm service port connection type and fitting compatibility before ordering
- System evacuation requires appropriate trade qualifications — confirm licensing requirements in your state or territory
- Confirm warranty terms with HVAC Trade Supply at time of purchase
Frequently Asked Questions
What is the measuring range of the Testo 552i?
0 to 20,000 microns (0 to 26.66 mbar). Confirm accuracy and resolution against the Testo 552i datasheet for your specific evacuation requirements.
Does the 552i connect to Testo digital manifolds?
Yes — the 552i connects automatically via Bluetooth to compatible Testo digital manifolds as well as the testo Smart Probes App. Confirm compatibility with your specific manifold model before ordering.
What app does the Testo 552i use?
The testo Smart Probes App, available for iOS and Android. Confirm current compatibility with your device and OS version before ordering.
What is the warranty?
Confirm current warranty terms with HVAC Trade Supply at time of purchase.
How fast is delivery across Australia?
We dispatch orders Australia-wide. See our shipping information page for current delivery estimates.
Browse the full Testo Smart Probes range or contact our team for advice on wireless vacuum measurement.