Halcyon Master Dual Scale SPG OMS Voice menu that is clear

Voice menu that is clear and immediate to learn

The contrasting Adventures Edition Dark Peregrine evokes the allure of exploring temperate waters

With its massive 45lb size

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Halcyon Master Dual Scale SPG OMS Voice menu that is clearHalcyon Master Dual Scale SPG Halcyon's standard Pressure Gauge is just what you would expect in a SPG: low tech, reliable, and accurate. The classic heavy duty brass housing and tempered glass lens will stand up to any environment, and the gauge face is clean and easy to read in all conditions. The weight and size of the gauge makes is best suited to serve as a primary SPG for your back gas. Dual Scale Measures 2 3 8" (6cm) in Diameter. 1" (2. 5cm)