Halcyon Stage SPG Review

The Halcyon Stage SPG is a compact brass analog pressure gauge known for clear markings, a rugged housing, and tempered glass. After testing two cheaper gauges, I moved to this model for its 500 PSI reserve band and reliable readability in low light. Below are the pros, tradeoffs, and how it has performed for me across fresh, cold, and warm salt water.

By Tyler Allison · Updated July 2025
Halcyon Stage SPG analog pressure gauge
Use
A year of regular use
Current role
Primary SPG across my kits
Still in my kit
Yes

The Short Version

The Halcyon Stage SPG gives me the readable dial and durable construction I wanted after trying two cheaper gauges. It is my primary SPG across my kits, and after a year of regular use it still looks nearly new. It costs more and weighs more than some alternatives, but I could have saved money by buying this one before the two gauges I did not like.

Would I buy it again? Absolutely.

What Works

  • Crisp, high-contrast markings that I can read quickly in low light
  • A red band beginning at 500 PSI, which I preferred to my previous gauge's markings
  • Brass housing and tempered glass face
  • Easy to unclip and check with gloves
  • No wear or operational issues after a year of regular use

What Doesn't

  • More expensive than generic SPGs
  • Heavier than travel-focused gauges
  • No color customization

Why I Chose the Halcyon Stage SPG

I tried two cheaper SPGs before settling on the Halcyon. One had a red zone starting at 1000 PSI, earlier than I wanted on the dial, and the other was difficult to read underwater. The Halcyon offered the compact size, clear markings, and 500 PSI red band I was looking for.

The difference was practical rather than cosmetic. I wanted to glance at the gauge and get a clear reading, and this one did that better than the budget options I had used.

What It Is Like to Dive

Readability
The markings and contrast make it easy to read at different angles. I can get a pressure reading quickly, including in low light and cold water.
Handling with Gloves
It is simple to unclip and check, even when I am wearing gloves. That straightforward handling is part of why I keep using it.
Mounting and Routing
I clip it to my left hip D-ring. It sits flat without snagging, and the hose routes cleanly in my setup.
Consistency Across Kits
It is my primary SPG across my kits and environments. I do not rotate it out or swap configurations depending on the dive.

Ownership and Travel

After a year of diving in quarries, Lake Michigan, cenotes, and Fiji, the gauge still looks nearly new. The brass body and tempered glass face have held up without wear or operational issues in that use.

The weight is a tradeoff when traveling, and it costs more than the generic alternatives I tried. For me, the readability and reliability justify that difference. Buying cheaper gauges first did not turn out to be the better value.

Who It Makes Sense For

It makes sense for divers who want a durable, easy-to-read analog gauge for a backplate or traditional setup. My experience across fresh water and warm salt water has made it a useful choice when I want the same gauge across varied conditions.

I would look elsewhere if minimizing luggage weight were the priority or if I wanted a color-matched, customizable gauge. Those are not the things I value most in my own SPG.