Designed for technical divers, DIR philosophy training, and top-quality regulators, the SPG TECH GAUGE ensures the highest accuracy and reliability. Its tempered glass, the double welding, and the copper beryllium bourdon tube mechanism guarantee maximum durability and never go out of calibration even with hard shock. Available with Nickel or Chrome treatment ensures maximum protection against corrosion. Manufactured in Italy and certified according to EN250:2014 & European Regulation 2016/425. Tech pressure gauge. Diameter. 52 mm. Double Chrome. Tempered glass. Capsule 0-300 bar. Hose 150 mm (6 inches). O2 on the dial if approved and certified for Oxygene.