Testo Smart Probes AC & Refrigeration Test Kit

A compact wireless diagnostic kit for refrigeration and air-conditioning work. This Testo kit gives you two 549i high-pressure probes and two 115i clamp thermometers so you can read pressure and pipe temperature directly in the Testo Smart App on your phone or tablet. It is a tidy option for servicing, fault-finding and commissioning work where you want faster superheat/subcooling calculations and cleaner reporting without dragging a full manifold body into every job.

For tradies building a smarter workflow, this kit sits naturally alongside Bluetooth smart tools, the full Testo range, and supporting gear such as refrigerant scales, refrigerant gauges and vacuum gauges.

Best for

• HVAC/R technicians servicing split systems and refrigeration equipment
• Techs who want faster superheat and subcooling calculations in-app
• Service and commissioning work where hose clutter slows you down
• Teams that want neater digital job records and emailed reports

Why this kit works well on site

• Wireless workflow: pressure and temperature readings are transmitted to the Testo Smart App via Bluetooth, so you can work from your phone or tablet instead of hovering over a traditional gauge set.
• Fast calculations: the app handles superheat and subcooling automatically, which speeds up diagnosis and charge checks.
• Broad refrigerant support: the app includes 90+ common refrigerants and receives refrigerant updates.
• Long Bluetooth range: up to 100 m for more flexible positioning around condensers, rooftops and plant rooms.
• Cleaner reporting: measurement data can be emailed as PDF or Excel files for records and handover notes.

What’s included

• 2 x Testo 549i high-pressure gauges
• 2 x Testo 115i clamp thermometers
• Use with the Testo Smart App on a compatible smartphone or tablet

Key specs

Compatibility notes

This kit is built for pressure and pipe-temperature measurement with app-based calculations. If your workflow also requires evacuation verification, pair it with a dedicated vacuum gauge. If you want a more traditional all-in-one gauge body workflow, browse digital refrigerant gauges.

For a broader overview of the Testo ecosystem, see the Testo collection. For wireless tool comparisons and buying help, the Testo Smart Probes guide, selection guide and 115i guide are relevant next reads.

Who this kit is not ideal for

• Techs wanting a single manifold body with onboard screen and hoses as their main workflow
• Jobs where deep-vac proofing is the priority without adding a separate micron gauge
• Buyers who do not want to use a phone or tablet on the job

Frequently asked questions

Does this kit include a manifold body?

No. This kit is built around wireless probes: two 549i pressure probes and two 115i clamp thermometers used with the Testo Smart App.

Can it calculate superheat and subcooling?

Yes. That is one of the main reasons tradies buy this kit. The app handles superheat and subcooling automatically once the probes are connected.

Can I export job data?

Yes. The Testo Smart App supports emailing measurement reports as PDF or Excel files.

Do I still need a vacuum gauge?

For evacuation verification, yes. This kit is excellent for pressure and pipe-temperature diagnostics, but a dedicated vacuum gauge is still the better tool for micron-level evacuation work.

Is it suitable for Australian HVAC/R work?

Yes, for measurement and diagnostics. But any refrigerant handling work in Australia must be carried out by an appropriately licensed person where required. See the compliance note below.

Why buy from HVACShop?