Testo HVAC Instruments & Digital Manifolds – HVAC Shop Australia

Trusted Testo gear for fast, accurate HVAC diagnostics

Testo is a global leader in measurement technology, with instruments trusted across HVAC, refrigeration, electrical and building diagnostics worldwide. At HVAC Shop, you’ll find genuine Testo gauges, smart probes and thermal imagers built for tough Aussie conditions, backed by local support.

Whether you’re commissioning VRF, troubleshooting a frozen evap, verifying airflow on a new AHU or checking a switchboard for hot spots, this is your one-stop Testo hub.

Why choose Testo from HVAC Shop?

• Serious accuracy, less guesswork
  Testo instruments are engineered for precise measurement of temperature, pressure, humidity, airflow and IAQ – ideal when you’re working under Australian standards, NABERS targets or client energy KPIs.
• Smart app workflows
  Many Testo tools connect to the testo Smart App for live graphing, automatic superheat/subcool, documentation and report export – so you can walk off site with clean digital job records instead of scribbled notepads.
• Rugged and serviceable
  Testo manifolds, probes and testers are built for job-site abuse, with robust housings and clear displays. Testo Pty Ltd provides Australian calibration and service support so your gear stays compliant and reliable.
• Genuine Australian stock
  HVAC Shop only supplies genuine Testo instruments sourced via authorised Australian channels, with local warranty and product support.

What you’ll find in our Testo range

1. Digital manifolds & vacuum measurement

For refrigeration and air conditioning commissioning, service and evacuation, you’ll find:

• Testo 557s Smart Digital Manifold – 4-way block, wireless vacuum gauge, clamp temperature probes and app integration for automatic superheat/subcool and evacuation tracking.
• Testo 550 / 550s / 558s platforms – pro-grade digital manifolds with large graphic displays, Bluetooth, multi-refrigerant support and guided measurement menus.

Pair your manifold with quality accessories from our Refrigerant Gauges collection , Vacuum Gauges and Vacuum Pumps ranges.

2. Smart Probes & Bluetooth tools

Testo Smart Probes turn your phone into a full diagnostics platform:

• Smart Probes AC & Refrigeration kits – compact sets combining high-pressure gauges and clamp thermometers for portable commissioning and troubleshooting, with superheat/subcool automatically calculated in the app.
• Heating, IAQ & mould kits – targeted probe sets for balancing hydronic and air systems, checking humidity and surface conditions, and identifying mould-risk areas.
• Smart cases & storage solutions – rugged Testo Smart Cases to protect and organise your probes between jobs.

For more wireless tools across all brands, explore our Bluetooth Smart Tools collection .

3. Thermal imaging cameras

From plant rooms to switchboards and building envelopes, Testo thermal imagers help you see faults before they fail:

• Testo 883 Thermal Imaging Camera – a versatile imager for HVAC, electrical and building diagnostics, with high thermal sensitivity and powerful analysis software.
• Testo 890 professional kits – 640×480 px thermal resolution with telephoto lens options for high-end building envelope, industrial and electrical inspections.

View the full thermal range in our Thermal Imaging Camera collection .

4. IAQ, temperature, humidity & airflow

You’ll also find:

• Hygrometers and IAQ meters for verifying comfort conditions, humidity and indoor air quality in line with Australian IAQ guidance.
• Anemometers and flow meters (such as the Testo 417) for measuring supply/exhaust flow rates during commissioning and balancing.
• Contact and infrared thermometers, plus data loggers for cold-room, product or room temperature trending.

5. Electrical testing & verification

To safely work around switchboards, condensing units and control panels, this collection also includes:

• Testo 755-series current/voltage testers – automatic parameter detection and exchangeable tips for everyday electrical checks on HVAC systems.
• Testo 750-3 voltage testers – GFCI test, clear LED indication and LCD display for compliance-focused electrical verification.

You can browse the dedicated Electrical Testing collection for all brands and models.

Quick buyer’s guide: Picking the right Testo tool

For refrigeration commissioning & service

• Choose digital manifolds that support the refrigerants you work with (R32, R410A, R22 and blends).
• Look for wireless vacuum measurement for evacuations.
• Prioritise app integration if you need digital job records and graphs.

Combine your manifold with accessories from our Refrigerant Gauges and Recovery & Evacuation ranges.

For airflow, IAQ and comfort checks

• Choose IAQ meters and anemometers that measure the key comfort parameters: temperature, humidity and airflow.

For building diagnostics & energy audits

• Prioritise thermal resolution (pixels) and NETD sensitivity (mK) – the finer the detail, the easier it is to identify insulation defects, thermal bridging and overheating components.

For electrical work

• Only use instruments rated and designed for electrical testing and follow your site’s lock-out/tag-out and safety procedures.

For a broader view of all instruments, see our Test & Measurements collection .

Compliance & licensing note (Australia)

Any work that involves handling scheduled refrigerants – installing, servicing, decanting, recovering or decommissioning RAC equipment – must be carried out by technicians and businesses licensed under the Australian ARCtick scheme.

Testo instruments help you measure, test and document performance, but they don’t replace the need for a licensed professional for regulated refrigerant or electrical work.

Related HVAC Shop resources

• Testo 557 bundle deals – what Australian retailers offer
• Sydney high-rise guide: evacuating ducted systems with Testo 557
• Testo 557s vs 557 – what’s different for Aussie tradies
• Fieldpiece HVAC Tools – alternative pro-grade instrumentation