Halcyon Master SPG Review
A precision brass SPG with clean markings and a rugged build, it delivers what cheap gauges don’t: trust. I use it as my standard SPG across all configurations and it has never failed to perform. Clear readings, no bounce, and a red zone that starts at the right place.
Overall Score: 9.0 / 10
Pros & Cons
| Pros | Cons |
|---|---|
| Red zone starts at 500 PSI | More expensive than generic SPGs |
| Easy to read at any angle | Not lightweight for travel |
| Brass housing with tempered glass face | No color customization |
| No issues across any dive environment |
Why I Chose the Halcyon Master SPG
I tried two cheaper SPGs before settling on the Halcyon Master. One had a red zone that started too early at 1000 PSI, the other had poor visibility underwater. This one ticked every box I cared about: compact, readable, precise, and a red zone that starts right at 500 PSI. It’s also built to last.
Performance in the Water
- Visibility: Crisp markings and contrast. I can glance and get an exact read quickly, even in low light or cold water.
- Mounting: Clipped off to my left hip D-ring. Sits flat, doesn’t snag, and hoses route cleanly.
- Durability: After a year of use across quarries, Lake Michigan, cenotes, and Fiji, it still looks nearly new.
- Standardization: It’s my primary SPG across all kits and environments. I don’t rotate it out or swap configurations.
Verdict
It’s not flashy, but it does its job better than any budget option I’ve tried. After buying two other SPGs I didn’t like, I could have saved money by just getting this one first.
Would I buy it again? Absolutely.
Deep Dive into the Score
Scoring System: Each category is scored out of 10 and weighted by importance. This model is used consistently across all gear reviews for transparency.
| Category | Score (0–10) | Weight | Weighted Score |
|---|---|---|---|
| Function & Performance | 10.0 | 30% | 3.00 |
| Ease of Use | 9.0 | 20% | 1.80 |
| Versatility | 8.5 | 15% | 1.275 |
| Durability & Build Quality | 9.5 | 15% | 1.425 |
| Value | 8.0 | 10% | 0.80 |
| Brand Trust | 9.0 | 10% | 0.90 |
| Total | 9.20 / 10 | ||
Rounded Display Score: 9.0 / 10
Deep Dive Score Explanations
- Function & Performance – 10.0: Flawless readability and accuracy. Everything I want from an SPG.
- Ease of Use – 9.0: Simple to clip off and check quickly, even with gloves.
- Versatility – 8.5: Works on any kit, but heavier than travel-focused gauges.
- Durability & Build – 9.5: Brass body, tempered face, and no wear or issues after a year of regular use.
- Value – 8.0: More expensive than alternatives, but pays off in quality and reliability.
- Brand Trust – 9.0: Halcyon consistently produces durable, reliable gear with solid quality control.