Product Specifications Parameter Value Measurement principle Imported electrochemical fuel cell type, magnetic mechanical type, laser, fluorescence Measurement range 0.00%–25% O2 / 0.00%–99.99% O2; (Range selectable) Accuracy ±1%FS Response time τ90 ≤ 30S Preheating time ≤ 10min Sample gas flow rate (400±40) mL/min Sample gas pressure 0.05MPa ≤ inlet pressure ≤ 0.25MPa Analog output (4–20) mA standard signal; (0–10) V available upon request Digital output Standard RS485