Why this product matters

Real-world: you’re on a Brisbane plant room call-out and the old HP dial’s fogged. Swap in this 80 mm gauge and you’re back to clean readings in minutes, fair dinkum time saver that helps avoid misreads and call-backs. For a complete setup, see our Mastercool Manifold Gauge Sets.

Pro tip

Before charging, let the gauge and manifold stabilise to ambient temp, then zero check. Use quality thread sealant on the 1/8" NPT connection (avoid over-torque) and protect the lens in a gauge boot—she’ll be right.

Compatibility & system info

• Refrigerants: R410A, R32 (with temperature saturation scales printed on face).
• Connection: 1/8" NPT back mount (fits many Mastercool/compatible manifolds).
• Range: up to 800 psi / 55 bar (high-pressure side).

Local note: From windy Sydney rooftops to humid Brisbane plant rooms, the big face and clear scales keep you moving—no worries.

What’s included

• 1 × Mastercool 80 mm high-pressure gauge, back-mount, dual psi/bar with R410A/R32 temp scales.

Specifications

Specs confirmed from the HVAC Shop product listing.

Warranty & returns

Covered by HVAC Shop’s standard warranty and returns when installed by licensed technicians. Use in line with Australian refrigerant-handling requirements.

FAQs

Will this fit my manifold?
Most analogue manifolds use 1/8" NPT back mounts, so it’s a straightforward swap. Check your body thread before ordering.

Is there a matching low-side gauge?
Yes — pair it with the Mastercool 80 mm low-side gauge (R410A/R32) for a complete face refresh.

Do I still need tables for charging?
The face includes R410A/R32 temperature scales for quick checks. For deeper diagnostics, see our manifold sets and training articles below.

Related products

• Mastercool Manifold Gauge Sets — helpful if you’re upgrading the whole rig or want 5/16″ options for minisplits.
• Refrigerant Gauges Collection — compare HP/LP dials, sizes and scales to suit the job.
• Matching Low-Side Gauge — keep both sides consistent for tidy readings.