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Micron Gauge

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SVG3: Digital Vacuum Micron Gauge Sold out
$397.95
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SVG3: Digital Vacuum Micron Gauge

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SVG3 - Superceded - Go to MG44 Digital Micron Vacuum Gauge SVG3: Vacuum Gauge Rugged and Loaded Schrader depressor to minimize leaks by reducin...

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SMAN460 : 4-Port Refrigerant Manifold with Vacuum micron sensor Sold out
$511.95
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$344.95
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$344.95

SMAN460 : 4-Port Refrigerant Manifold with Vacuum micron sensor

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Premium Digital Manifold - Vacuum-equipped 4-Port Manifold with ATC1 clamps and Hood. On Target with Live Measurements Extra rugged design Live ...

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Fieldpiece Wireless 4 Valve Digital Manifold W Micron Gauge - Sm480vint Save 20% Save %
$1,879.95
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$1,879.95
$1,503.95
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Fieldpiece Wireless 4 Valve Digital Manifold W Micron Gauge - Sm480vint

5+ in stock

The newly designed SM480vINT Fieldpiece Manifolds are stronger & more robust than ever before The SM480VINT is simply the next level with t...

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$1,879.95
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Fieldpiece 2 Valve Digital Manifold With Data Logging & Micron Gauge SM380VINT Save 32% Save %
$1,474.95
$1,474.95 - $1,474.95
$1,474.95
$999.99
$999.99 - $999.99
$999.99

Fieldpiece 2 Valve Digital Manifold With Data Logging & Micron Gauge SM380VINT

5+ in stock

The newly designed Fieldpiece Manifolds are stronger & more robust than ever before! The Fieldpiece 2 Valve Digital Manifold with Data Logging...

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$1,474.95
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$1,474.95
$999.99
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$999.99
Save 32% Save %

This collection brings together reliable micron gauges designed for Australian conditions. Whether you’re a tradie tuning a split-system in Darwin or a contractor commissioning multi-splits in Melbourne, these gauges help you pull a proper vacuum, confirm dryness, and protect compressors for the long haul.

Why Micron Readings Matter

What’s a micron? A micron is one micrometre—one millionth of a metre (1 μm). In HVAC we use “microns” to measure absolute pressure during evacuation. Hitting a target like 500 microns (and proving it holds) means moisture and air are out, oil lasts longer, and systems run quieter and more efficient. Too easy.

Versatile, tidy, and built for real work

  • Versatility: From quick domestic call-outs to commercial installs, you’ll find options that work alongside your favourite pump, hoses, and core tools—great if you’re using an AC vacuum gauge today and need a digital vacuum pressure gauge tomorrow.
  • Practical benefits: Accurate vac readings catch wet lines, leaky cores, or suspect flares before you charge. That saves callbacks and keeps weekend footy plans intact.
  • Clean fit-out: Compact displays and tidy housings keep your kit looking sharp. Clear screens and simple menus mean less fiddling in the sun and more getting on with it.

Talk like a pro; work like one

However you search—micron gauge, digital vacuum gauge, vacuum gauge for vacuum pump, vacuum pump and gauges, or vacuum gauge HVAC—this range has you covered. Pull down deep, verify with confidence, and sign off with pride.

Made for Australian jobs

  • Split & multi-split installs where documentation matters.
  • Service calls chasing moisture-related noise or intermittent TXV issues.
  • Heat-pump upgrades needing fast pull-down and rock-solid decay tests.

Why This Collection Matters

Picture a humid arvo in Brisbane: you’ve evacuated to 600–700 microns and it stalls. With the gauge mounted at the service port and cores removed, the decay shows a slow rise—moisture flashing off, not a leak. A gentle warm-up, fresh oil, a re-pull—and now you’re sub-500 and stable. No callback, no drama—fair dinkum.

If you’re building out your evacuation setup, match your gauge with a high-flow pump and hoses for faster pull-downs. Start with our Vacuum Pumps and pair with Vacuum Hoses.

Pro Tip

Use short, large-bore hoses with Schrader cores removed. Isolate the pump and watch the decay: a fast rise = leak; a slow rise = moisture. You’ll be packed up and off to the next job quicker than you can say “ripper”.

Compatibility & System Info

  • Refrigerants: Suitable for R32, R410A, R134a and common HVAC/R systems.
  • Placement: Fit at the system port for the most accurate reading (not at the pump).
  • Typical Use: Commissioning splits, multi-splits, VRF service, and refrigeration line repairs.

Local note: Coastal NSW salt-air and Darwin humidity mean moisture and corrosion are real—prove a dry system with a proper decay test and you’ll avoid those pesky callbacks.

Helpful Pairing Tips

For a bulletproof setup, consider:

What’s Included

This is a collection. Each product page lists its own inclusions (gauge body, couplers, batteries, manuals, etc.).

Specifications (Typical Ranges)

Measurement Range ~50 to 25,000 microns (model-dependent)
Units Microns, mTorr, Torr, mbar, Pa, mmHg (varies by model)
Display Backlit LCD; some models feature wireless app viewing
Ingress Rating Up to IP54 (model-dependent)
Mounting Direct to service port; reversible/angled couplers on select models
Use Cases Evacuation verification, decay testing, documentation

Warranty & Returns

Backed by Australian consumer guarantees. Manufacturer warranties apply per item. Change-of-mind returns within 30 days in original condition. See site-wide Warranty & Returns at checkout.

FAQs

What micron target should I hit on a split-system?

Most OEMs and trade best practice aim for ≤500 microns with a stable hold (decay test). For high humidity days or larger line sets, going sub-300 can help. Learn more in our guide: Understanding Micron Readings.

Do I mount the gauge at the pump or the system?

At the system port with cores removed for the most accurate reading. Keep hoses short and large-bore to minimise restrictions.

How do I tell moisture from a leak?

Isolate the pump and watch the decay: a fast rise points to a leak; a slow rise suggests moisture flashing off. Warm the components safely, refresh oil, and re-pull before charging.

Related Products

Learn, improve, and stay current

Want practical tips, how-tos, and real-world checks? Visit the HVAC Trade Supply Blog for refreshers you can use on the next job.

Industry Standards & Best Practice

For professional guidance and training resources, see AIRAH. Staying aligned with recognised best practice keeps installs tidy and reduces callbacks.

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