Nickel plated solid brass housing with extremely transparent tempered glass; Copper beryllium bourdon tube mechanism and silver welding; This gauge is designed for technical divers or alternatively for all types of diving. In a wide 270-degree sweep, from “0” to full scale. Certified according to EN 250. Range graduations: 0-360 bar. Weight: 170 gr. Diam. 52 mm. This gauge can be combined with a stainless-steel shackle with bolt.