Choose the model Guardian oil pressure gauge 0-5 bar black 12 V Guardian oil pressure gauge 0-10 bar black 12 V Guardian oil pressure gauge 0-5 bar black 24 V Guardian oil pressure gauge 0-10 bar black 24 V Guardian oil pressure gauge 0-5 bar white 12 V Guardian oil pressure gauge 0-10 bar white 12 V Guardian oil pressure gauge 0-5 bar white 24 V Guardian oil pressure gauge 0-10 bar white 24 V