Dive Rite BAR SPG's are calibrated to 300-BAR in 50 BAR increments and are "Nitrox Ready". Both feature a chrome-plated brass housing and a Bourdon tube mechanism providing the greatest degree of accuracy and reliability.
The luminescent dial glows-in-the-dark, making it easier to read in low light situations. The SPGs include a removable boot, with 32-inch HP hose and spool. The standard SPG has a 2.5-inch tempered glass face and the compact SPG has a 1.5-inch scratch and impact resistant polycarbonate face.