Halcyon master & stage spg – nickel-plated brass scuba pressure gauges

Description

The Halcyon Master and Stage SPGs are precision analog pressure gauges built for divers who demand dependable, easy-to-read gas monitoring in demanding environments. Designed around an industrial-strength internal spring and durable metal construction, these gauges provide reliable performance for recreational, technical, cave, wreck, and decompression diving.

The Master SPG is Halcyon's full-size primary pressure gauge, designed for maximum readability and rugged durability. Its substantial body and large luminescent face make it an excellent choice for primary back-gas monitoring, especially in cold water, low visibility, or overhead environments. The gauge is housed in nickel-plated brass and protected by a durable mineral glass lens.

The Stage SPG offers the same streamlined Halcyon approach in a smaller, lighter package. Its reduced size and weight make it ideal for stage and decompression cylinders, helping keep those bottles balanced and easy to manage. The Stage SPG uses a nickel-plated brass body with an acrylic lens to reduce overall weight.

Both models are designed for divers who value simple, robust analog instrumentation and clear pressure information at a glance.

Features:

• Precision analog submersible pressure gauges
• Industrial-strength internal spring
• Highly visible luminescent gauge face
• Durable nickel-plated brass construction
• Reliable operation in demanding dive environments
• Master SPG optimized for primary gas monitoring
• Stage SPG optimized for stage and deco cylinders
• Compact Stage SPG helps reduce cylinder imbalance
• Excellent for recreational and technical diving
• Genuine Halcyon diving equipment

Available Models:

Master SPG

• Full-size primary pressure gauge
• Large, easy-to-read display
• Nickel-plated brass housing
• Mineral glass lens
• Calibrated for PSI and BAR

Stage SPG

• Smaller and lighter than the Master SPG
• Designed for stage and decompression cylinders
• Nickel-plated brass housing
• Acrylic lens
• Lightweight design helps balance stage bottles

Specifications:

Master SPG

Pressure Scale

• BAR: approximately 0–350 / 360
• PSI: approximately 0–5000 / 5500

Body

Nickel-Plated Brass

Lens

Mineral Glass

Display

Luminescent Analog Face

Application

Primary Gas Pressure Monitoring

Stage SPG

Product Type

Compact Analog SPG

Body

Nickel-Plated Brass

Lens

Acrylic

Application

Stage and Decompression Cylinder Monitoring

Design

Reduced Size and Weight

Brand

Halcyon

Ideal For:

• Recreational scuba diving
• Technical diving
• Cave diving
• Wreck diving
• Stage bottle configurations
• Decompression diving
• Back-gas monitoring
• Cold-water diving
• Overhead environments
• Divers who prefer analog instrumentation