Halcyon Master SPG (0-400 Bar) Molchanov while the patented No-Lock® connector

while the patented No-Lock® connector facilitates easy inflation via an LP hose or orally

Its frameless

standard cord

Designed for discerning divers

sealed diaphragm)

Halcyon Master SPG (0-400 Bar) Molchanov while the patented No-Lock® connectorHalcyon Master Submersible Pressure Gauge (0 400 Bar) Large 2. 5 inch (63mm) diameter for clear, easy to read display Highly visible luminescent face for excellent low light readability Robust nickel plated brass housing with a mineral glass lens Industrial strength spring calibrated for pressures up to 400 Bar Ideal as a primary SPG for back gas on single or double tanks Trusted by technical, cave, wreck, and CCR divers Standard 7 16" UNF HP port