CHINO wall-mounted oxygen meter Measurement principle: Zirconia solid electrolyte method Air sampling method: Natural diffusion type Response time (seconds): 20 or less 90% response Measurement value display: 3 digits Digital display using yellow-green LED Measurement range (%O2): 0.0 to 25.0 (resolution 0.1) Transmission signal输出(MV):0至250(输出电阻约10Ω)