Hvac Shop Blog

Clip on, step back, and keep your footing. The Testo 549i wireless pressure gauge lets Aussie HVAC techs monitor live pressure from a safer position on Sydney high-rises, Brisbane rooftops, and tight commercial sites. With Bluetooth app monitoring, cleaner job notes, and fewer hoses in the way, it’s built for faster diagnostics, better proof, and less “just one more check” climbs.

Moisture is the quiet cause of many call-backs. This guide shows how a Testo vacuum gauge gives you real micron proof, so you stop guessing and start confirming dryness, stability, and leak behaviour. You’ll see the full Testo vacuum range in Australia, how to choose between the 552 and 552i, and the simple rise-test habits that protect your labour on Brisbane, Sydney, Melbourne, Perth, and Darwin jobs.

Testo 557 is the digital manifold Aussie techs trust when they’re done guessing. It gives you stable pressure readings, fast superheat and subcooling calculations, and a workflow that feels calm on real jobs. Whether you’re dealing with Brisbane humidity, Sydney coastal salt, Melbourne cold snaps, Darwin tropics, or Perth heat, the 557 helps you diagnose faster and prove your results. In this guide, you’ll see how the 557 compares to the 557s, how to connect Bluetooth cleanly, how to use the vacuum probe properly (including a rise test), and how the Testo Smart App supports tidy reporting for compliance-style handovers.

Go wireless with the Testo 115i clamp thermometer. Faster, safer pipe temps, live graphs and easy PDFs—built for Aussie rooftops.